Where to start
Since the fault is in the electrical system, those who will try to fix it must be able to work with electrical circuits and will need a measuring device. To do this, it is quite enough to have a car tester or a multimeter. The malfunction may be like this:
- Complete failure of operation;
- One or more fan speeds are not working.
In the first case of malfunctions, the check should begin with the fuse; it is located in the interior mounting block at number 5. The maximum current for this device is 15 Amperes. You can check its serviceability by measuring the resistance with an ohmmeter or replacing it with a new one. If it is working properly, you should check the onboard voltage fuse on the legs.
The further power path passes through the electromagnetic relay, which is also located in the mounting block number 2. Check the power at the input and output of the relay when the fan is turned on and its operation, which is accompanied by soft clicks. You can also check the relay with an ohmmeter or by replacing it with a new device.
Repair instructions
Repair is a fairly simple matter. You need to stock up on time, prepare a tool - a set of slotted and Phillips screwdrivers with heads of different sizes, as well as a can of automotive lubricant. WD-40 will work fine. Additionally, it is worth keeping an old toothbrush and a container of solvent on hand (gasoline is a normal option), with which you can remove dirt. The procedure is as follows:
- All things are taken out of the glove compartment.
- Several screws can be found along the edges of the glove compartment. They must be carefully unscrewed with a Phillips screwdriver.
- After the screws are removed, the glove compartment itself is removed. To do this, you need to pull it towards you and unfasten the fixing latches.
- The foot air module is mounted on a single bolt. It is also deleted.
- Next you can see a black plug, which is secured with many bolts. Getting to them is not so easy, but you will have to try, unscrewing each element in turn.
- The shutter regulator is removed. As a rule, it is dirty and very dusty, so there is no need to be surprised.
- All dust must be thoroughly removed, the gears are cleaned, washed and lubricated with WD-40. If they show obvious signs of wear or damage, replacement is necessary.
- The shutter cable is adjustable; its tension may need to be adjusted by tightening it or, conversely, loosening the corresponding clamp.
- The module is assembled in the reverse order. An important point is the precise installation of the guides into the grooves. This is not so easy to do in limited space.
- Adjustment of stepper control motors. They must work in sync. To do this, the dampers are lowered all the way down, the climate control is set to the minimum level, and the actual adjustment begins. The marks indicated on the gears must match.
What next?
The search should continue on the fan operating mode switch, the block of additional resistors and the electric motor. For such a check, you will need to disassemble the glove box trim, after which you will have access to the motor. Disconnect the connector on it and alternately check the presence of supply voltage at the terminals and the resistance of the electric motor windings. To do this, use a car tester in voltage measurement mode, and then an ohmmeter. The plus from the current source goes directly to the connector, and the ground is connected through a block of additional resistors.
For comfort during winter trips, the interior of the Nissan Qashqai, both 2008 and all subsequent models, is equipped with a stove. Its performance is ensured by a unit such as a heater motor, and control by a temperature sensor, which together with some other components form the interior heating system. A serviceable and high-quality heating stove allows you to stay in the car without any complaints about the microclimate.
Main malfunctions and their causes
There are three main problems on the Nissan Qashqai that cause the heater to not work properly (it doesn’t heat or blow):
- The heater motor stopped blowing. The problem may lie in the fact that a transistor or fuse has burned out, and, therefore, in order to correct the situation, the broken element must be replaced. Also, the cause of such a breakdown can be worn out lamellas, brushes or burnt out windings.
- When the stove is running, the rotation speed (rpm) does not change, even when the knob for this parameter is turned. Most likely, this indicates that the transistor has burned out, and in order to correct the situation, it must be replaced.
- Replacing the stove motor may be necessary if there are extraneous sounds during its operation. Most likely, this indicates wear of the bushings, which are quite problematic to change locally with your own hands.
Typically, the heater motor for Nissan Qashqai 2009 and other years of production is equipped with a housing and an impeller and is supplied assembled.
Repair
In most cases, if the heating and air conditioning system is not functioning well, it may be necessary to replace the heater fan or some resistor (they are located in the additional unit); in some cases, it may be necessary to replace the radiator of the heating system.
Very often there are situations when the stove heats up, but the fan does not work; in this case, you should pay attention to the serviceability of the fuse, which can be found in the cabin unit (number five).
Remove the non-functioning element, and before installing a new one, be sure to check the serviceability of the circuit. Usually after this the fan works again.
How to remove the heater motor, repair or replace it, can be seen in numerous videos presented on the Internet, each of them was filmed by a person who personally carried out the repair work.
In order to replace the motor, you must follow the following sequence:
- The first step is to remove the instrument panel, as well as the steering column beam.
- The cooling unit and heater should be set.
- Remove the electrical wiring fastening from the intake flap (its upper chamber).
- Disconnect the connector from the engine.
- Remove the mounting screws from the heater housing and cooling unit.
- Remove the air conditioner motor.
After this, move the fan to the right side and remove the mounting pin and elbow. Then, if necessary, you can replace the motor or other components of the heating system.
Heater fan does not work on Nissan Qashqai
Such a malfunction is equally unpleasant for owners regardless of the time of year. In winter, the supply of warm air into the cabin is limited; in summer, the flow of cold air cannot be increased. There is no need to blame problems with the car’s cooling system, heater radiator or coolant supply valve, since the culprit has already been identified; it is a non-working fan in the car’s heating system. Let's try to figure out this problem together.
Problems and reasons
We have been hearing about stove malfunctions in this Qashqai for a long time. Three main symptoms of malfunction:
the stove does not blow (does not heat), the stove does not change speed or makes strange sounds (whistles, squeals, squeaks).
The main culprits for these symptoms are:
1. The stove motor does not blow:
the brushes are worn out/the lamellas are worn out/the winding is burnt out - change the motor or the transistor is burnt out - change the transistor or the thermal fuse in the transistor block is burnt out - change the thermal fuse.
2. The stove motor does not change the rotation speed:
The transistor is burnt out - change the transistor.
3. The stove motor squeals:
The bushings are worn out - change the motor. I don’t recommend changing bushings for bearings - there are a lot of difficulties, the result is not very good.
Selection and prices
There are plenty of options to choose from. In different stores the prices for the motor will be different and on average its cost is 3000 - 4000 rubles.
You can buy it at car wrecking yards for half the price.
The motor is sold with the housing and impeller assembly. The Nissan Qashqai (J10) and X-Trail (T31) models have the same ones.
The original Qashqai heater motor has not one number, but five:
27225-ET00A, 27225-ET10A, 27225-ET10B, 27225-JD00A, 27225-ET00B
Original heater motor XTrail two numbers:
27225-EN000, 27225-EN00B
Moreover, all seven numbers are the same spare part!
If we have to make do with replacing the transistor, we purchase a new one for independent repairs or at the request of the technician. The following options are suitable:
IRFP064N
— 55V, 98A — recommended for purchase.
IRFP064NPFB
- 55V, 98A - this is a modification, recommended for purchase.
IRFP044
- 60V, 57A.
IRFP054
- 60V, 70A - can be taken.
IRFP048
- 60V, 70A - can be taken.
IRFP250N
- 200V, 30A - this one burned out in a day, the current is not enough.
The average price of a transistor is from 95 rubles. up to 200 rub.
Heater fan motor replacement services and cost.
This procedure is quite labor-intensive and requires certain skills. Therefore, it is better to trust those people who have experience in such things. At service stations, the work will cost about 2,000 rubles, without the cost of a new engine.
If you wish, you can make the replacement yourself, but it will take much longer than it will take in the service department.
How to fix the heater in a Nissan Qashqai car
For manufacturers of modern cars, one of the important factors is an economical engine, since this significantly affects the cost of owning a car.
Reduced fuel consumption leads to insufficient heating of the engine at low ambient temperatures, which negatively affects the heating of the cabin, because the heater takes heat from the engine and distributes it throughout the cabin. But no matter how economical the engine is, it must warm up the interior. Much depends on the method of warming up the engine.
You can warm it up while idling, or you can use it while the vehicle is moving. The second method is more effective, since over equal periods of time the degree of heating is higher, and a short distance is covered. But in order to use it, a number of conditions must be met.
You cannot drive fast with a cold engine and transmission. Therefore, if after parking you need to go onto a busy road, this method will not suit you. But if you have a couple of kilometers of road at your disposal, on which you can drive at low speed and not disturb anyone, use this segment to warm up the engine and transmission of the car. This method will save both fuel and time. But if the engine warms up and still blows cold air from the deflectors, then the fault must be looked for in the heater itself.
Diagnostics
In Nissan Qashqai, as in other cars with a liquid-cooled engine, the heater uses engine heat for heating. Therefore, the point of diagnostics is to understand at what section of the heating system (which is associated with engine cooling) the operation becomes incorrect.
- Check the coolant level. When the tank is filled below the minimum level, there is a high probability of an air lock forming in the heater core, which is why part of the radiator will be constantly cold and the air passing through it will not warm up sufficiently.
- Make sure the thermostat is working correctly. This can be done either using a pyrometer or by touch. The degree of heating of the surface (unheated engine) before the thermostat should be significantly higher than after it. These values should equalize after 80° C. If the temperature readings are the same throughout the entire operation of the motor, it means that the thermostat is not working correctly and must be replaced.
- Check the capacity of the cabin filter. Due to the fact that “outboard” air is used to heat the interior, which contains a large amount of impurities (dust, dirt, etc.), it needs to be cleaned. For cleaning, a filter element is used, which is capable of passing only air through itself, and all impurities remain on the ribbed structure. Like the engine air filter, it needs to be replaced when performance deteriorates.
- Make sure there is good flow of coolant and air through the heater core. From the outside, the radiator can become clogged with dust and prevent the free flow of flow through the honeycombs. A rust plug may form in the internal part, which will block the free passage of liquid through the radiator, which will negatively affect the heat transfer of the interior heating system. To check for blockage, you need to touch the temperature of the pipes at the entrance to the stove and at the exit from it. They should be approximately the same. If the inlet pipe is warm and the outlet pipe is cool, then the plug is inside the radiator. In this case, it is necessary to clean or replace it, since for good heating of the interior, unhindered circulation of liquid through all elements is necessary.
- A broken heater fan can cause poor heating, since the interior is heated by forcing cold air through a hot radiator. The fan is responsible for “pumping” air. It may not work at all or work incorrectly. If there are no signs of “life” in the electric motor, it is necessary to check the serviceability of the fuse. If it burns out, it is necessary to eliminate the short circuit (it can be in the wiring or in the electric motor). The impeller may also be faulty. It is made of plastic, which itself is a very fragile material, and over time can be destroyed by rotation. When the impeller is destroyed, air circulation deteriorates and heating becomes insufficient.
- A poorly functioning or jammed pump significantly impairs the circulation of fluid through the system, which, in turn, leads to unsatisfactory heating. This breakdown threatens the failure of the entire motor, since heat is not removed from highly heated parts, causing them to overheat. This type of breakdown can only be diagnosed in the early stages. For diagnosis you need:
- switch the heater control to manual mode and set the maximum temperature;
- turn on the fan at medium speed and place your palm near any deflector;
- When increasing engine speed, monitor the increase in flow temperature; if the increase is significant, then the pump is faulty.
Stove fan diagram
To get to the unit we are interested in, we need to remove the pedal block and begin disassembling the heater housing from the cabin filter side.
This procedure is quite labor-intensive and requires certain skills. Therefore, it is better to trust those people who have experience in such things. Qashqai J10 Heating and Air Conditioning System
1.
Intake pipe rubber bushing
2.
Air conditioning motor assembly
3.
Heater pipe seal
4.
Air conditioning filter
5.
Air conditioning filter cover
6
.
Mixing damper motor (left) 7
.
Mixing flap lever 8
.
Electric heater 9
.
Mixing flap 10
. Intake air temperature sensor.
A short excursion on how to remove the heater motor to replace it.
The information is condensed and is well suited for amateurs and craftsmen.
- First we remove the dashboard.
- Next, remove the steering column beam.
- Then remove the heater and cooling unit.
- Remove the electrical wiring fastening clamp from the upper chamber of the intake flap.
- Then disconnect connector B
. - Next, from the heater housing and cooling unit, unscrew the mounting screws - A
of the lower chamber of the intake damper. - And remove the intake flap motor 1
. - Then remove the air conditioner motor
- The fan needs to be moved to the right and the mounting pin and elbow removed.
Stove repair
Well, now let’s look at the process in more detail, for those who found free time (3-4 hours) and decided to make the replacement themselves.
We remove the minus from the battery. Remove the left side panel of the center console (it has two latches), remove the lower part of the panel under the steering wheel. To do this, disconnect the cable to open. hood, unscrew the self-tapping screw with a T20 torx, and begin to gently pry out the latches; it is better to first crawl under the panel and determine their location.
Having disconnected the panel, disconnect the connectors from the left block of buttons (mirror control, chandelier, ESP...), unscrew the T20 torx from the climate sensor.
Remove the bracket and pull out the pin.
Disconnect the connectors from the brake pedal end switches and from the throttle sensor, unscrew the 4 13mm nuts and take out the pedal assembly. (place of emphasis is circled)
We open the cover and take out the cabin filter.
Here it’s time for someone to figure it out, either on their back or on their stomach, so we basically lie down and crawl to the right place with a flashlight.
It's getting closer
Here it is - the engine.
We remove the power connector from it, then squeeze the latch by touch and turn the entire motor counterclockwise.
Removed.
There is enough dust in it.
Now you can install a new motor and assemble everything in reverse order or repair the old one. Let's look at it from all sides. Below is the ventilation/cooling location for the motor brush assembly.
Unscrew the top nut by 8 and completely remove the impeller from the motor.
We see the blockage.
The upper bushing is completely covered in dust and debris. Dirt deposits on the inside of the impeller.
It's even worse on the lower motor hub.
Now the task is to clean everything until it shines. Let's check the condition of the brushes, since we've come this far.
The brushes on this motor have not yet worn out.
Now let's get to the bearing and check its condition by cleaning the bushing. Remove the lock and other washers. We bend the petals and take out the bushing.
We check the noise of the bearing, if it whistles or hums, we replace it with a new one.
Bearings suitable for this motor:
SNR 608ZZ
or
SNR 608EE
Bend the petals even more, change the bearing and bend it back. We screw the impeller. We return the motor to the car and assemble it.
The noise is eliminated, the operating speed is excellent, the stove heats wonderfully!
Ready. This instruction was used: 63727
once.
The most frequently used component in any vehicle during cold weather is the heater. Without this device, driving a car will be less comfortable, so before the start of winter, the car owner is simply obliged to diagnose the health of the heater. If the system does not work, it can be caused by various problems, but the motor is usually the cause. In this article we will talk about how to replace the heater motor in a Nissan Qashqai or any other model.
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Replacing or repairing the Nissan Qashqai heater motor: Instructions
- 1 Replacing the stove motor
- 2 Motor repair
- 3
A small but quite cozy crossover from Nissan has gained considerable popularity in Russia, and this is justified. Compact in appearance, the car has considerable spaciousness, allowing you to fit comfortably into the cabin. An additional advantage can be considered low fuel consumption - in this Qashqai can be compared to a hatchback.
The first generation Nissan Qashqai J10 has been produced since 2006. In 2010, a restyling was carried out, after which the interior was significantly changed, several new engine and gearbox options were added.
Low fuel consumption is beneficial and pleasant, if you do not take into account the impact of such savings on interior heating. In the 2008 Nissan Qashqai, coolant takes heat from the engine and uses it to heat the air, which is sent inside the car. But if the engine operates with a certain fuel starvation, then its operating temperature is low, and therefore it is not able to fully warm up the car.
Owners of the first generation Nissan Qashqai faced exactly this problem. In addition to the fact that customer reviews indicate frequent breakdowns of the heater motor, even without any defects it barely warmed up the interior.
After restyling, the situation changed for the better. Even though the parts of the heating system have not become better or more durable, the interior of the Qashqai has become warmer and more comfortable.
The second generation of the 2014 Nissan Qashqai J11 (restyling in 2017) came out with major changes and no longer has such problems. The heating system has been redesigned, so now the owners of this car do not have to freeze. By warming up a new car (no older than 2012) for 10-15 minutes, you can create quite comfortable conditions in the cabin, even if there is a specific minus outside.
Replacing the stove motor
The Achilles heel of the first generation Nissan Qashqai is the heater motor. The main problems that arise with it:
- Brushes and lamellas quickly wear out, and the winding burns. In this case, the stove stops “blowing”. If this is the problem, you can try to repair the motor.
- Failure of the transistors leads to the fact that the speed of the motor is not regulated. In this case, the transistors have to be changed.
- An extraneous hum or creaking noise during operation of the stove warns of an imminent replacement of the motor. The bushing wears out quite quickly, which causes suspicious sounds. Many people try to replace it with a bearing, but this is not the best idea: it will take a lot of time, and the result will still not be quiet operation.
Low flow rate or rapid loss of coolant may be associated not with the stove itself, but with the radiator or pipes. Before disassembling the stove, it is necessary to check the integrity of these elements. It may be necessary not to repair the electric motor, but to replace the heater radiator or broken hoses.
A clogged cabin filter may also be the culprit for poor heating of the cabin; before buying new parts for the stove, it is recommended to first replace the filter. Perhaps this will completely solve the problem.
Replacing a Nissan Qashqai heater motor is not the easiest procedure, so most Qashqai owners prefer to go to a service station, despite how much quality costs. The average cost of work will be 2000 rubles, to which the cost of the motor is added - 4000-6000 rubles. If you need to replace the transistor, you can buy a new one for 100-200 rubles.
If new spare parts are available, replacing the stove motor by professionals will take 3-4 hours. self-repair with skillful hands with all the necessary tools - twice as much. If you have never had to do this kind of work before, but you have a tool, a broken stove and a desire to fix it, you will have to spend at least two days on the problem. But next time it will definitely be faster and easier.
A motor for a stove is a spare part that is better to buy new rather than used, and you won’t have to look for it for a long time. The fact is that the motors on the Nissan Qashqai and X-Trail are absolutely identical.
Numbers of the original heater motor for Nissan Qashqai:
- 27225-ET00A;
- 272250ET10A;
- 27225-ET10B;
- 27225-JD00A;
- 27225-ET00B.
Numbers of the original heater motor for Nissan X-Trail:
- 27225-EN000;
- 27225-EN00B.
You can safely buy a motor with any of these numbers; it will be suitable for replacement.
How to change a stove motor with your own hands
Before you replace or repair the motor, you need to make sure that the problem is not a blown fuse.
List of tools required to replace a heater motor with your own hands:
- ratchet with extension;
- a T20 Torx screwdriver for it;
- heads for 10 and 13 or wrenches of the same size (but more convenient than heads);
- pliers;
- flat and Phillips screwdrivers;
- clip removers
Step-by-step work process:
- The car is de-energized (first the negative terminal is removed, then the positive terminal).
- The cable for opening the hood is disconnected.
- The following are removed sequentially: the left side part of the dashboard and the lower part of the panel under the steering wheel - all with rivets, the location of which is best determined in advance.
- The climate sensors and the connector from the left button block are disconnected.
- We find the upper chamber of the intake damper and remove the clamp from it that secures the wiring.
- The pedal assembly is removed (before this, the connector is removed from the brake and gas pedal ends).
- After this, the cabin filter housing snaps off.
- The power connector is disconnected from the motor, which is turned counterclockwise and removed.
After the motor is removed, it must be cleaned of debris and dirt and the winding and brushes inspected. If it is impossible to restore the functionality of the old heater motor, the new one is installed in the same place in the reverse order.
The heater fan is replaced after the electric motor is disconnected, removed and cleaned.
Replacing the heater fan
Constant fan speed, unusual squeaks and lack of air flow after turning on the heating may indicate problems with the fan. This does not necessarily mean that the furnace fan will need to be replaced unless the physical integrity is compromised.
The heater motor for Nissan Qashqai is sold complete with impeller and housing. In a Nissan Qashqai, replacing the heater fan is possible, but not rational - if the impeller is damaged or even slightly bent, the heater will make a strong noise and will fail quite quickly, and it is almost impossible to carry out balancing on your own.
The breakdown may concern a transistor in the speed controller or an overheated resistor - if it burns out, it is replaced with a new one.
Numbers of suitable transistors:
- IRFP250N – low quality;
- IRFP064N – high quality;
- IRFP048 – medium quality;
- IRFP064NP – high quality;
- IRFP054 – medium quality;
- IRFP044 – medium quality.
Motor repair
Depending on the damage, the motor is either repaired or completely replaced. It happens that repairs are possible, but not rational: even though a used motor at disassembly will cost much less than a new one in a store, purchasing individual parts can be quite expensive, if they can be found at all. In such cases, the stove motor is completely changed.
Stove malfunctions
If the Nissan Tiida, Qashqai, Beetle or any other car does not work, then this problem needs to be solved as quickly as possible. After all, constant inoperability can lead to the fact that if the windows fog up, which happens quite often in winter, they will remain fogged up. Moreover, if it is frosty outside, the windows may also freeze, and the air temperature in the cabin will be generally low. We suggest you understand the main symptoms and causes of stove malfunctions.
Signs and causes
The three main symptoms of heater failure are:
If the motor only works at 4th speed, then the rotation speed resistor has burned out. As a rule, it is located next to the motor.
As practice shows, the main causes of such symptoms are as follows:
The procedure for replacing a heating system motor is also not an easy task. But if you are used to repairing a car with your own hands, then it will not cause you any difficulties.
To replace, follow these steps:
- First you need to dismantle the dashboard. To do this, disconnect all the necessary fasteners and unscrew the bolts on which the control panel is attached. Disconnect the device from all connectors and plugs and set it aside. All work on the control panel must be carried out carefully to prevent damage to this unit.
- When the instrument panel is removed, it is necessary to dismantle the steering column beam. You will need a standard plumbing tool for this.
- Having done this, you can dismantle the heating device itself, as well as the cooling unit. When removing, also be careful not to damage these system elements.
- After these steps, it is necessary to remove the electrical wiring retaining clip from the upper chamber of the intake flap. It should be noted that quite often problems in the operation of a particular mechanism are caused precisely by electrical circuit malfunctions. Therefore, when removing the wiring, be careful not to damage the circuit. If you see that the contacts in the plugs have begun to oxidize, then they must be cleaned immediately, this will avoid possible problems in the future. Use a construction brush to clean the contacts.
- Next, following the diagram, you need to disconnect the connector marked with the letter B from the damper motor. Having done this, you need to unscrew the mounting bolts A from the housing of the heating unit and the cooling unit using wrenches.
- After these steps, you can dismantle the intake flap motor, marked 1 in the diagram.
- Then you should remove the air conditioning system motor.
- The system venting device moves slightly to the right, after which you can remove the mounting pin along with the elbow. Having dismantled the stove motor, you need to connect a new device instead of the old one, fix and connect it. Mount the engine as securely as possible, this will prevent vibration and, accordingly, more accelerated wear and failure. After installation, further assembly is carried out in reverse order.
Qashqai heater electric motor repair
Replacing the Nissan Qashqai heater fan is not the only solution. You can try to repair the faulty element. The procedure for removing the fan remains identical to that described in paragraph “Step-by-step description of replacing the heater motor.” After removing it, you can see the accumulation of dust. Clogging can cause the impeller to jam. To perform an audit, you must perform the following operations:
- To dismantle the impeller, unscrew the upper fixing nut;
- The internal cavity of the impeller is cleaned from dust deposits;
- Deposits of dust and dirt particles on the upper and lower parts of the motor bushing are removed with a brush or brush;
- Subsequently, the condition of the brush-contact apparatus is monitored. If the brushes are worn, they must be replaced;
- The lock washers and others following them are removed from both sides of the electric motor shaft, then the fan axis is dismantled;
- At this stage, the condition of the bearings is checked, check for play, hum or increased noise during rotation. If any suspicion arises, the bearing must be replaced. To do this, you will need to bend the three retaining petals, dismantle the failed element and install a new one;
- In the future, we assemble the electric motor in the reverse order. At the same time, we lubricate the rubbing parts of the mechanism.
Price issue
And although the procedure for replacing a heating system motor is not particularly complicated, not every motorist can cope with such a task. Therefore, many vehicle owners have to pay for such a service. If you decide to seek help from a service station, then you will probably be interested in learning about the cost of the service. Depending on the region of residence, it may differ radically. For example, if in Moscow you pay from 4,500 to 6,500 rubles to replace a motor, then somewhere in Rostov or Nizhny Novgorod this procedure will cost from 1 to 4 thousand rubles.
