Causes of whistling in the Ford Focus 2 stove, solutions. Ford Focus 2 heater repair

With the onset of cold weather, two systems are responsible for maintaining a comfortable temperature inside the Ford Focus 2 car:

cooling of the power unit;
ventilation and heating.

Therefore, if the stove does not work and warm air does not enter the cabin, the cause of the breakdown will have to be looked for in them.

The most common reason for the lack of heating in a Focus is a blown fuse F10 (30A), which is located in the climate control fan circuit. In the fuse box it can be found on the left side. The diagram will indicate its more precise location.

If everything is in order with the fuse, you should pay attention to the fan relay, which is also located in the fuse compartment. It is more expedient to check its serviceability using a tester, after first removing the relay from the socket. However, a more effective method of checking is using a new, serviceable relay, which is installed in the socket instead of the old one, after which the heater fan starts. If it works, then the cause of the problem has been identified. Otherwise, it is necessary to check the operation of the fan electric motor. In addition, there are a number of malfunctions that should not be overlooked.

Ford Focus 2 stove repair: we study thoroughly

The heater does not work on a Ford Focus 3.5. What to do? With the advent of cold weather, two accounting software (software) are responsible for maintaining a comfortable temperature inside the Ford Focus 3.2 car:

cooling of the unit;
ventilation and heating.

If the stove does not work and warm air does not enter the cabin, the cause of the breakdown will have to be found there.

A more common reason for the lack of heating in the Focus is a blown fuse F10 (30A), which is located in the climate control fan circuit. You will find it on the left side of the fuse box. A clearer placement of it will give a hint from the diagram.

If the passage, if the fuse remains in order for our client, it is worth checking the fan relay, which is also located in the fuse compartment. It is more expedient to check its serviceability using a tester, having previously pulled the relay out of the socket. But, a more effective test method is to use a new, serviceable relay, which is installed in the socket instead of the old one; after completion, the heater fan starts. If it works, it means the cause of the problem has been identified. Otherwise, you need to check the functionality of the fan electric motor. In addition, there are still a number of defects that should not be overlooked.

Basic faults

The list of the most common causes of stove failure and lack of heat in the cabin includes a fan malfunction. Perhaps the stove is not working due to a fuse, but there are no problems with the mechanism. This is where you need to start checking. We open the fuse box (it is located on the left side of the engine compartment) and find the element we need. To do this, you can use a special scheme. The fuse is responsible for the safety of the entire heating and ventilation system, and therefore its failure can lead to failure of the stove.

If the fuse is OK, you need to look further. The fan relay, which is located in the same block as the fuse, may have broken. It is checked with a special device - a tester, to which the relay is connected. If it is not there, then you need to take a working relay and install it in the socket. The problem with the stove was resolved, and the fault was discovered. If the Focus 2 heater fan still does not work, then you need to look further and deal with the electric motor itself.

How to replace a support bearing on a Ford Focus 2

Getting to the electric motor is quite difficult, but we will tell you how to do this a little further. When the motor is in your hands, it needs to be checked. To do this, connect directly to the battery and listen to see if it works. If not, you will have to replace or repair it. If it works, you need to look for a fault in the wiring or in the control unit.

In some cases, the stove operates in only one of the modes. As you know, you can choose 4 speeds, and the higher it is, the more intense the airflow will be. Quite often the fan only works at the highest speed, and nothing happens at all other speeds. As a rule, this means a malfunction of the resistors, which are placed in a separate unit. If one of the resistors fails, you will have to replace the entire unit, which is located under the glove compartment.

So, these are the most common reasons for stove failure. Note that you can fix the problem yourself if you have a garage where you can remove the engine or deal with other problems. If this is not possible, then you can contact specialists who will quickly detect the breakdown and carry out repairs.

The Ford Focus 2 heater fan does not work. How to remove it?

Quite often this element of the car heating system fails. Sometimes you have to listen to how terribly its bearing whistles. Nerves simply give out and the responsible car owner begins to look for ways to remove this problematic part?

We begin to remove the stove fan.

You can get to it only after removing the glove compartment. After that, you need to remove the right air duct, remove the power supply wires from the electric motor terminals and, unscrewing the fastening screws, remove the fan.

Electric motor

Another element of the heating system that often affects the operation of the fan, and directly of the electric motor. It crashes quite often. Especially in the first generation of the model. Therefore, you should not exclude it.

To diagnose, you will need to remove the fan motor. After removal, they check in the simplest and most reliable way. Take two wires, connect them to the electric motor terminals, and transfer the free ends to the battery contacts. A good engine should hum. If this does not happen, then it should be replaced with a working one.

Checking the Ford Focus 2 electric motor

The previous steps may not have been useful, and the heater fan on your Ford Focus 2 still does not work. You should move on to looking for faults in the electric motor. To dismantle this part, you will have to dismantle other components. So, you should remove the bolt securing the glove compartment. After this, the fuse box and the cable connected to the recirculation flap are taken out. Next on your way there will be a clip that needs to be pulled out, along with the insulation.

We're almost there. We remove the damper from its place, then carefully pull out the cables that provide power to the electric motor. In the freed space, on the left, you will find a latch that can also be removed.

So, the electric motor has been removed and you can check its functionality. To do this, connect the unit to the battery. If everything works, this indicates that the problem needs to be looked for in the wiring and control unit.

If connecting to the battery did not start the electric motor, it means that the heater motor on the Ford Focus 2 stopped working precisely because of this unit. In some situations, the electric motor is subject to repair, but these actions can only be performed by a professional specialist.

There are situations when everything is fine with the fan, but only at the fourth speed, with a strong supply of warm air, and at any other speeds the fan stops. In this case, the failure lies in one of the resistors. Alas, it won’t be possible to replace just one part; you will have to completely change the entire unit.

Relay fault

A relay that regulates the speed of the fan is responsible for the operation of the fan. You can find it in the mounting block, slightly to the side of the fuses. For diagnostics, you will need to remove it from the mounting socket. Do this very carefully.

Diagnosis can be made in several ways. The easiest way is to measure the relay readings using a multimeter. But the method of installing a known-good part is also often used. If, after installing a working switch, the fan starts working, then we can say that you have found the problem.

Ford Focus 2 heater does not heat well

It also happens that the stove still works, but blows cold air, or even produces a temperature that is insufficient to warm up the interior. So, let’s try to figure it out and find the reasons why the stove does not heat well:

Coolant does not circulate well in the system. Perhaps its level has dropped as a result of a leak, or the “coolant” has exhausted its service life, or an air lock has formed somewhere. In any case, it is worthwhile to inspect the engine cooling system; be sure to check and add antifreeze to the required level or replace it altogether if quality indicators deteriorate;
The thermostat or temperature sensor is faulty. There is no way to do without replacing these parts;
improper air circulation due to violation of the correct position of the thermostat valves. This leads to the fact that the cooling liquid circulates only in a large circle, as a result of which cold air does not enter the heater radiator;
Too much debris and dirt has accumulated in the heating system, which interferes with its normal functioning.

As you can see, the reasons for the lack of heat in the Focus’s interior are largely interrelated. By the way, the restyling of the model has the same problems.

Coolant

Another nuance that is worth remembering is the presence of a sufficient amount of antifreeze in the system. If there is not enough of it, the stove will work very weakly. In this case, the engine as a whole will overheat. The reason for this phenomenon is the placement of the radiator. It is located at the highest point of the cooling system. Therefore, if there is a shortage of coolant, it simply does not reach the stove. Always monitor the amount of antifreeze in the cooling system. This will not only normalize the heating operation, but also avoid a number of difficulties with the car engine.

Article on the topic “What is the difference between red, green and blue antifreeze.”

Liquid leak

. If the stove doesn't heat well, be sure to look under the rug. In some cases, you will see a puddle of antifreeze there. The radiator can gradually become worn out, which leads to fluid leaks from the system. The main sign of this is the persistent smell of antifreeze in the cabin, as well as the presence of liquid under the rugs, where it drains. The only option is to replace the part.

Symptoms of a problem

First, let's figure out when you should worry about the operation of the heater. Let's say you got into your car in the morning, turned on the heater, and did not hear the characteristic noise of the fan. This indicates that the stove has broken down. The sooner you eliminate it, the better.

Another option

– the stove turns on only at certain speeds.
This malfunction is quite difficult to detect immediately. You can wait a little while eliminating it. At the very least, do not do diagnostics immediately after discovering a problem; nevertheless, in such a situation, you can operate the car. Also, in some cases, the fan may work, but the stove will not heat. In this case, you should first pay attention to the tap that allows coolant access to the stove. Perhaps you simply forgot to open it. If it is open, you need to look for the cause of the breakdown.

Open circuit

Also, the stove may not work due to an open circuit. This happens quite often. Usually this is not damage to the wires (the fuse responds to them), but a problem with the connectors. They either just oxidized

and do not pass current. Or they were simply disconnected. The latter option usually occurs when some work has been carried out.

It's worth checking the wiring, starting from the fuse box to the switch and heater. This makes it much easier to find the problem section of the chain.

Disassembling the torpedo

I turned on the fan, it seems to be working, it blows as before, but it also whistles a little. Well, I spat on it, I said to myself, well, God bless them, the main thing is to clean and lubricate them, which means everything will be fine.

But everything is not simple in our lives. The next day, when I came to pick up the car to go to work, I saw such a miracle and a super miracle sound.

After which, I disassembled everything as described above. Disassembly for the second time took only minutes with a smoke break.

What to do if the air conditioner in a Ford Focus does not work

What could be the reasons?

If the air conditioner does not turn on, the car's electrics or elements of the electrical air conditioning system are often to blame, however, the most obvious reasons should not be overlooked. We pay attention to weather conditions. Despite the fact that the operating instructions for the air conditioner recommend turning it on at least once a month, at any time of the year, when the air temperature outside is low, the air conditioner may not turn on

This is normal and does not indicate a malfunction. Checking the fuses. Typically, when you press the A/C button, you hear a clicking sound from the compressor clutch. If there is no click, the activation did not work, and you will have to look under the hood, where you will most likely see that there is no rotation of the compressor shaft drive pulley, and this is a reason to check whether fuse F27, through which power is supplied to the clutch, is working. The mounting block in which this fuse is located is located in the engine compartment. There is a diagram on the cover of the motor block on which you will see the location of the required element. If everything is in order with F27, you should look at fuse F35, through which power goes to the relay winding. We check the chips and

Fuse layout for the Ford Focus block cover

Often the reason lies in damage to the wiring of the chip, which relates to the electronic control unit, or the wires leading to the block on the compressor clutch. You can easily repair the wires yourself. We check the relay and the functionality of the clutch itself.
The contacts in the relay socket should be connected directly. Unfortunately, this method does not always indicate a malfunction in the relay, but if the clutch works, we are guaranteed to exclude its malfunction.
When suspicions fall on the relay, you can replace it with a similar one and check its functionality. If everything works with the other relay, the old one needs to be replaced or repaired.

Refilling the Ford Focus 2 air conditioner

Checking the pressure sensors.
Doing this on your own is quite problematic. Ford Focus 2 has two pressure sensors, and a malfunction of at least one of them will cause the air conditioner clutch to not start. To accurately determine which sensor is not working, it is best to perform diagnostics.
For this car model, the most common failure is the freon pressure sensor, which is installed on the compressor.

Poor stove performance

In some cases, the stove works on a Ford Focus 2, but it does not heat well enough or blows cold. This means that it does not fulfill its functions. As a rule, there are several reasons for this problem, including:

Comfort in a car depends on many different factors. During the cold season, it is almost impossible to move without a stove. On a Ford Focus, the stove works great and allows you to warm up the car interior quite quickly. However, for various reasons, this system may fail, and it will not cope with its work. What to do if the heater on a Ford Focus 2 does not heat well? What are the main reasons? Let's find out.

Most often, Ford Focus 2 owners encounter the following problem. After starting the engine and warming it up to operating temperature, cold or barely warm air blows. There are no errors, and everything seems to be working correctly. It is noteworthy that after some time the problem can resolve itself. For example, after driving 50-100 km and letting the engine cool completely, the next time you start it, everything will work fine.

You can try to solve problems on the spot. To do this, you just need to press the gas a little and maintain the speed at 2-3 thousand for a while. After this, the stove should blow warm air again. In this case, the problem lies in the thermostat. For some reason, it either opens a little or closes. In the second case, only a small circle is heated. The problem can be corrected by replacing the thermostat. After the repair, hot air will always blow, and for this reason the heating system will not fail.

Flushing the FORD stove

Signs to contact a specialist

The air flow from the stove is warm, but too weak;
The engine overheats;
The air flow from the stove is strong, the air is cold;
There is an unpleasant odor in the cabin.

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Reasons why it may be cold inside the car

First of all, let's figure out why the operation of the stove may be disrupted and it does not heat the car well. Let's take a closer look at the first option. If the air flow from the stove is warm but weak, then the reason lies in the fact that something is preventing it from passing normally through the air ducts. An old or heavily soiled cabin filter can cause trouble. Be sure to make sure that the cabin filter is in good condition!

Another option may occur when the car spends a lot of time on the roads. In such cases, rust or other sediment gets into the interior heating radiator. This may manifest itself as a result of using low-quality coolant, or rarely replacing it. Sometimes there are cases when sealant is poured into it to eliminate a leak in the cooling system.

What features of flushing the stove are found in Ford cars?

First of all, it is worth understanding that flushing the stove is most often carried out without removing the radiator, this allows you to save the work of the technician and the precious time of the car enthusiast. It is important to use a high-quality liquid that is specifically designed for this purpose, usually a special acid. If the radiator has previously been damaged, it is important to inform a specialist about this so that it can be repaired and the leak will not form again.

How to determine if the heater radiator is clogged

What is flushing the stove radiator without removing it?

The washing principle is very simple. To perform this operation, our service center technicians use a special liquid. It is poured into the radiator and kept for about 10-15 minutes. After this, the procedure is repeated several times until clean water passes through it.

What will be the result of a properly washed stove?

What can happen if you wash it incorrectly?

In the best case scenario, you will not get any results and will simply waste your time. The stove will not work properly, and you will freeze. In bad scenarios, you may end up with a cooling system failure that is incompatible with the continued use of one part, or in the worst case scenario, the entire system.

The problem occurs quite often on Fords of any year of manufacture. It contradicts a comfortable stay in a car. Solving problems is very easy with Orbita car service. Our specialists have extensive experience in servicing various vehicles. We guarantee a positive result of the operations performed. Providing quality services is our top priority.

Ford Focus 2 Manual

We remove the Ford Focus 2 heater to repair or replace it, as well as to remove the heater radiator and the evaporator of the air conditioning system. Disconnect the wire terminal from the negative terminal of the battery.

Before starting work, it is necessary to discharge the air conditioning system. The Ford Focus 2 air conditioning system must be discharged or charged with refrigerant at specialized services for servicing air conditioning systems.

If the air conditioning system is depressurized as a result of through corrosion or mechanical damage in its parts, in this case there is no need to discharge the system.

We disconnect the two pipes of the air conditioning system from the evaporator flange (see “Removing the frame of the Ford Focus 2 instrument panel”).

When removing the frame, unscrew one long bolt each securing the right and left frame brackets to the transverse pipe of the instrument panel frame (see “Removing the Ford Focus 2 instrument panel frame”).

These same bolts simultaneously secure the lower part of the heater to the cross pipe.

Removed instrument panel frame assembly with heater

Using a Torx T-25 wrench, unscrew the self-tapping screw securing the right air duct to the transverse pipe of the instrument panel frame.

We remove the air duct from the hole in the heater housing and remove the air duct.

Similarly, remove the left air duct.

Press the latch...

...and disconnect the wiring harness connector from the heater fan motor speed controller.

By pressing the latch, disconnect the wiring harness block from the heater fan.

By pressing the latch, disconnect the wiring harness block from the electric drive of the damper for turning on the air recirculation mode.

Using the “7” head, unscrew the three self-tapping screws securing the filter cover of the heating, ventilation and air conditioning system...

...and remove the filter from the heater housing.

We move the rubber seal from the supporting flange of the evaporator tubes and the heater radiator...

Use a screwdriver to pry up and remove the foam rubber fastening piston.

Using a Torx T-25 wrench, unscrew the three self-tapping screws securing the evaporator cover...

Using a Torx T-27 wrench, unscrew the two self-tapping screws securing the heater radiator casing to the evaporator and radiator cover...

...and two self-tapping screws securing the cover to the heater body.

Using a Torx T-20 wrench, unscrew the five screws securing the cover to the heater body...

Using a Torx T-25 wrench, unscrew the two screws connecting the two parts of the support flange...

Remove the spacer for the evaporator hoses and heater radiator pipes.

Having unfolded the evaporator with tubes, as shown in the photo, remove it.

If it is not necessary to remove the heater radiator, in this case we install the evaporator of the air conditioning system in the reverse order. We fill the required amount of coolant into the engine cooling system and charge the air conditioning system at a specialized service center for servicing air conditioning systems. If you need to remove the heater radiator and heater housing, then after removing the evaporator, perform the following operations.

Replacing the stove radiator

We will describe the process of replacing the heater core without removing the dashboard.

First you need to remove the center console, disconnect and remove the air ducts that supply heat to the rear of the cabin. Carefully, so as not to damage the latch, remove the lower part of the trim (semicircular plastic from the front panel). After unscrewing the bolts located under the trim, you need to remove the metal corners. Both parts of the lower section of the stove body must also be removed. To do this, unscrew the fastening screws and carefully bend the latches. We remove the glove compartment and both air ducts, after which we disconnect the heater housing, along with which the radiator should appear. This is not so easy to do. To facilitate this process, it is necessary to slightly bend the torpedo stiffeners towards the side. It is necessary to disconnect all hoses from the radiator, and then remove the heater housing along with it. After repairing or replacing the radiator, assembly of the unit is carried out in the reverse manner.

Circuit breakers

The first thing to look at is the condition of the fuse. A 30A fuse is responsible for the operation of the heater.

, installed in the mounting block. It is designated F10

. Remove it and check for functionality. This can be done by simply looking closely at the fuse. In case of burnout, this moment will be clearly visible. If this is the reason, then simply replace the fuse. But, at the first opportunity, check the wiring. Out of the blue, the fuses do not blow, which means there is a short circuit.

Replacing the furnace resistor

To perform this procedure you need a T25 TORX wrench. Please note that the sequence for replacing the furnace resistance is the same for Ford Focus 2 and its restyling options.

First you need to disconnect the negative cable from the battery terminal. Next, remove the accelerator control unit and brake pedal and disconnect the wires suitable for the resistor. Ford Focus 2 How to Take a Ford 6000cd Knife Car Radio - Duration: 4:41. Unscrew the mounting bolts with a TORX T25 wrench and remove the heater resistor.

Everything is going in the opposite direction.

The process of removing the electric motor

Generally speaking, it is not difficult to get a stove motor and almost everyone can do it. However, the problem is that making withdrawals is very inconvenient and you have to do a lot of things blindly. If you decide to repair it yourself, then you need to be prepared for inconvenience. Removing the electric motor is carried out as follows:

unscrew the bolt securing the glove compartment and remove it from its regular place;
remove the fuse box, first removing its cover;
disconnect the wire that connects to the recirculation damper;
pull out the clip and remove the insulation;
remove the damper from the mount and remove the old grease with a rag;
disconnect the power wires of the electric motor;
on the driver’s side there is a lock on the body that needs to be released by pressing it towards the center;
turn the electric motor counterclockwise and pull it out to the right side;
We remove the motor through the place where the fuse box was located and check its functionality.

After completing all the work, you need to put the working engine back in place, performing the steps in reverse order. Don't forget to use lubricant when installing the recirculation damper.

How to remove the heater motor?

In principle, as experienced auto mechanics say, this task is not so difficult as it is painstaking, since most of the work has to be done by touch.

Therefore, when starting the process of removing the heater motor, you need to be patient and do everything in the described sequence:

It is necessary to remove the glove compartment by unscrewing the seven fastening screws.
Remove the cover of the module in which the fuses and the unit itself are located.
Remove the power wires from the recirculation damper.
After disconnecting the clip, the insulation must be removed.
We unscrew the fastening and pull out the damper, first removing the remaining old grease with a rag.
Remove the wires from the motor terminals.
On the driver's side, on the fan housing, there is a lock. It must be felt and pressed towards the center, after which the body can be turned counterclockwise without effort. If possible, it is necessary to lower the damper down as much as possible, after which the motor is moved to the upper right part.
Pull the motor out through the window formed after removing the fuse box.

Install the motor in the reverse order, and apply lubricant to the recirculation flap.

Problems with resistors

As already mentioned, in some cases not all speeds work. The reason here is in resistors. A separate resistor is installed for each speed. All parts have different values. If one fails, then this speed stops working.

Resistors are placed in the block. It can be found by removing the glove compartment. Remove the resistor block and check the resistance on all elements. It must match what is indicated on the part body. All resistors showing different results from the desired ones are simply replaced with new ones.

Replacing the Ford Focus 2 heater motor

Otherwise, it is necessary to check the operation of the fan electric motor. In addition, there are a number of malfunctions that should not be overlooked. The Ford Focus 2 stove does not heat well. It also happens that the stove still works, but blows cold air, or even produces a temperature that is insufficient to warm up the interior. So, let's try to figure it out and find the reasons why the heater does not heat well: In any case, it is worthwhile to inspect the engine cooling system, be sure to check and add antifreeze to the required level; remove the heater motor for Ford Focus 2; replace it altogether if quality indicators deteriorate; The thermostat or temperature sensor is faulty.

There is no way to do without replacing these parts; improper air circulation due to violation of the correct position of the thermostat valves. This leads to the fact that the cooling liquid circulates only in a large circle, as a result of which cold air does not enter the heater radiator; Too much debris and dirt has accumulated in the heating system, which interferes with its normal functioning.

By the way, the restyling of the model has the same problems. How to determine when it is necessary to change the timing belt Removing the heater motor on a Ford Focus 2 The heater fan of the Ford Focus 2 is working.

How to remove? Quite often this element of the car heating system fails.

Sometimes you have to listen to how terribly its bearing whistles. Nerves simply give out and the responsible car owner begins to look for ways to remove this problematic part? It happens that when the first, second or third position of the switch is turned on, the fan does not work, starting to start only in the fourth mode. This failure is caused by the failure of additional resistors. We begin to remove the stove fan.

You can get to it only after removing the glove compartment. After which you need to remove the right air duct, remove the power supply wires from the electric motor terminals and, removing the heater motor for a Ford Focus 2 fastening screws, remove the fan. How to remove the heater motor? In principle, as experienced auto mechanics say, this task is not so difficult as it is painstaking, since most of the work has to be done by touch.

Ford Focus 2 heater motor replacement

Therefore, when starting the process of removing the heater motor, you need to be patient and do everything in the described sequence: Instructions for removing the Ford C-Max heater motor On the front passenger side, you need to remove the decorative plastic that covers the footwell airflow. To do this, you must first carefully pull its right side and disconnect the two latches. Now you need to remove the same decorative plastic, but at the driver’s feet, by pulling its left side and disconnecting the two latches.

The next step in removing the heater motor will be to dismantle the plastic in the area of the gear shift knob. On the left and right, we unscrew one screw each, which secures the plastic to the pipe, and carefully pull first on the right, and then on the left until the latches come off. After this, remove the handle cover by pulling its lower part up, while also removing the decorative cover.

There are two screws under it, unscrew them and remove the completely protective plastic by pulling it alternately from one side and then from the other. How to remove and install the heater motor on a Ford C-Max After this, we proceed to removing the glove compartment. To remove the glove compartment on a Ford C-Max, we perform the following operations: From below, near the pipe, we unscrew the screws that secure the hinges of the glove compartment. Now, inside the glove compartment, we unscrew four more screws and one under the previously removed plastic, see.

After this, you can pull out the glove compartment, having first disconnected the backlight contacts. Inside, after removing the glove compartment, we see the air recirculation mechanism in the car interior. On the motor we disconnect the connector that controls this mechanism. After unscrewing the three screws that secure the heater motor on the Ford Focus 2 recirculation, then remove it. How to remove and install the heater motor on a Ford C-Max On the driver's side, we also loosen the door seal a little and remove the small plastic cover with a sticker, as on the right side.

We unscrew the two screws that secure the plastic base of the diagnostic connector, and then remove it by pulling it slightly up and away.

Now, deep under the panel, it is advisable to use a flashlight to find the stove motor itself, find the connector to which the black-red and green-orange wires go and disconnect it. How to remove and install the heater motor on a Ford C-Max We look for a locking button on the motor not far from the removed connector, press it and turn it counterclockwise and remove the engine from the front passenger side. Now you can clean it, remount it or replace it with a new one.

Removing the heater motor on a Ford Focus 2 is done in the reverse order of removal. When preparing material on how to remove and install the heater motor on a Ford C-Max, information from the site Source was used: What to do? With the onset of cold weather, two systems are responsible for maintaining a comfortable temperature in the interior of the Ford Focus 2 car: Therefore, if the stove does not work and warm air does not enter the cabin, the cause of the breakdown will have to be looked for precisely in.

In the fuse box it can be found on the left side. The diagram will indicate its more precise location.

However, a more effective method of checking is using a new, serviceable relay, which is installed in the socket of the old one, after which the heater fan starts. If it works, then the cause of the problem has been identified. Otherwise, it is necessary to check the operation of the fan electric motor.

In addition, there are a number of malfunctions that should not be overlooked. The Ford Focus 2 stove does not heat well. It also happens that the stove still works, but blows cold air, or even produces a temperature that is insufficient to warm up the interior.

So, let's try to figure it out and find the reasons why the heater does not heat well: In any case, it is worthwhile to inspect the engine cooling system, be sure to check and add antifreeze to the required level; remove the heater motor for Ford Focus 2; replace it altogether if quality indicators deteriorate; The thermostat or temperature sensor is faulty.

By the way, the restyling of the model has the same problems. The Ford Focus 2 heater fan does not work. How to remove it? Quite often this element of the car heating system fails. Sometimes you have to listen to how terribly its bearing whistles. Nerves simply give out and the responsible car owner begins to look for ways to remove this problematic part?

It happens that when the first, second or third position of the switch is turned on, the fan does not work, starting to start only in the fourth mode. This failure is caused by the failure of additional resistors. We begin to remove the stove fan. You can get to it only after removing the glove compartment. After that, you need to remove the right air duct, remove the power supply wires from the electric motor terminals and, unscrewing the fastening screws, remove the fan.

How to remove the heater motor?

In principle, as experienced auto mechanics say, this task is not so difficult as it is painstaking, since most of the work has to be done by touch. I recommend using a magnetized screwdriver. This is what the air damper looks like disassembled.

We disconnect the fan plug and take it out. Now we go to the driver’s side and look under the pedals and look for such a plug with our eyes and disconnect it.

You don't need to use any screwdrivers, just your hands. There are three rubber holders on the fan body, put them in place.

Ford Focus 2. Removing the heater motor.

To remove the case you need to move these rubber bands. We take a minus screwdriver and press in the rubber band and, as it were, pull it up a little. We will show you how to do this operation with your own hands in video photos and video instructions.

We open the glove compartment, unscrew the 4 upper mounting screws on top and 3 screws on the bottom, they are hidden under plastic plugs: Torx T star mounting screws. After unscrewing, pull the glove compartment toward you and disconnect the plug with wires. As an option for placing the body, the first one from the driver's seat, lowering the handbrake handle, will have to touch the carpet of the passenger seat with his head, the second, having fully opened the passenger door and laying an old jacket on the threshold, lie down on the floor sideways, with the left side down.

In general, this removal and installation operation is akin to an hour of fitness! Remove the connection plug. Unscrew the three bolts that secure the motor mounting housing. Removing the recirculation flap. Disconnect the connector from the recirculation flap. Remove the clip and peel off the insulation. The removal of the heater motor for the Ford Focus 2 itself is attached to the body with three self-tapping screws.

its malfunctions, replacement and accessible electrical circuit

What is included in the electrical circuit?

Ford Focus Hatchback Fedya Logbook Rear suspension repair

The electrical circuit of Ford Focus 1, 2, 3, 4, Ford Transit, Ford Scorpio cars includes many different components. The main components that power the electrical network are, as is known, the battery and the generator device. The ignition system is designed in such a way that the spark to ignite the combustible mixture is transmitted through high-voltage wires. Below you can find diagrams and designations of the main components.

Like any other car, Ford Mondeo 1, Focus 1, 2, 3, 4, restyling is equipped with a fuse box, the elements of which allow you to protect the car’s electrical equipment from power surges. But in addition to the main power supply, Focus 4, 3 or any other is also equipped with another unit in which relays are installed.

It will not be possible to start the engine without the ignition system, so we suggest that you familiarize yourself with the diagram of its connection and the designation of the main components.

Also worth mentioning is the ECM - the electronic engine control system.

An equally important point that any focus guide should be familiar with is the connection diagram for the generator device. As stated above, a lot depends on the functioning of this device, so you need to know about its connection in any case.

Common faults

Below are the main malfunctions that appear in the operation of the electronics of Ford Focus 3, 4, 2, 1:

On these cars, the cables in the tailgate lid often break off. The problem is solved by removing the plastic trim and replacing the electric lock.
Models 1, 2, 3, 4 suffer from the “disease” of failure of license plate lamps. As a rule, the main reason for the appearance of a defect lies in the rather poor sealing of the lighting sources, so when installing the lamps, everything must be done correctly. In addition, when purchasing, you should give preference to higher quality devices. Today you can find five types of light bulbs on sale from different manufacturers.
Both the first and second Focuses, as well as other models, often suffer from such a problem as failure of the electric windows, especially in difficult climatic conditions. If this happens, the only way out is to remove the fuses from the installation socket for 10-20 minutes and then install them back. After installation, the window regulators must be raised all the way up, while the control button must be held for several seconds. If such actions do not solve the problem, you can try to dismantle the gear with the Hall sensor and rotate it 180 degrees (video author - SPN).

Prevention measures

What you need to know about the electrical network:

If you carry out wiring repairs, it should be carried out exclusively with the on-board network de-energized.
Connecting and disconnecting the battery is only possible with the ignition off.
If you diagnose electrical circuits, any short circuits are excluded, since this can contribute to the failure of the equipment as a whole.
When replacing fuses, use only parts specified by the vehicle manufacturer. If the elements are designed for higher current, they should not be used, like any other homemade fuses.
To prevent a short circuit when replacing a fuse, it is prohibited to use any metal tools to dismantle and install them.
When the power unit is running, the battery cannot be disconnected, as this will damage the voltage regulator and other components of the electrical circuit.
When diagnosing a generator diode bridge, you cannot use a megohmmeter that is powered by more than 12 volts. In principle, increased voltage is not recommended for diagnosing system components.
If you are welding elements of a vehicle body, then to do this you need to disconnect the battery, as well as the generator device. In addition, if welding is carried out without dismantling the body element, it would not be superfluous to turn off the power to the electronic control unit. If the ECU and alternator fail, it will result in large financial losses.
When the engine is running, do not touch the wiring of the ignition system under any circumstances.
Clean the battery terminals and terminals from time to time.

Sources

https://FokSevmash.ru/remont/motorchika-pechki-ford-fokus-3.html
https://myfords.ru/ne-rabotaet-pechka-na-avtomobile-ford-fokus-2-chto-delat
https://RoomAvto.ru/drugoe/ne-greet-pechka-ford-fokus-3.html
https://AlanSpb.ru/tehservis/upravlenie-pechkoj-ford-fokus-2.html

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The stove doesn't heat?

If you have checked everything, but have not found the reason why the stove is not working, then the reason is that the radiator is clogged with scale. In this case, it simply does not heat up due to sediment deposited on the walls.

I need to clean. To do this, use special substances that will help get rid of scale. In this case, it makes sense to flush the entire cooling system. You can buy specialized drugs or make do with improvised means. A good result is obtained by using a strong solution of citric acid for this work.

Sources

https://RoomAvto.ru/drugoe/ne-greet-pechka-ford-fokus-3.html
https://AutoTirCrimea.ru/sovety/pechka-fokus-2.html
https://arenda-pieter.ru/drugoe/ne-greet-pechka-ford-fokus-3.html
https://OdnaDetal.ru/drugoe/ne-greet-pechka-ford-fokus-3.html
https://litezona.ru/ploho-greet-pechka-ford-fokus-2-restajling/
https://dvd-podgolovnik.ru/drugoe/ne-greet-pechka-ford-fokus-3.html
https://vipauto-barnaul.ru/remont-i-zamena/ford-fokus-2-pechka-ploho-greet.html
https://saturn-lada.ru/opyt-i-sovety/pechka-ford-fokus.html
https://avto-ritet.ru/sovety/pochemu-ne-rabotaet-pechka-ford-focus-1-2-i-3-populyarnye-prichiny.html
https://maslo-5w30.ru/avto/neispravnosti-pechki-ford-focus-2-ne-rabotaet-ventilyator-motor
https://lada-avia.ru/drugoe/ne-greet-pechka-ford-fokus-3.html