The cooling fan on the Lada Kalina does not turn on

Modern domestically produced cars are equipped with various types of controllers and sensors that ensure full functionality of the car. If one of the devices fails, this may cause the units to malfunction. From this material you will be able to find out what the Priora and Kalina fan switch is, and what malfunctions are typical for it.

If the Lada Kalina cooling fan fails, you should immediately find the cause and eliminate it. If the machine boils over, it can have fatal consequences. At best, the gasket is damaged, and at worst, the cylinder head is deformed, which will lead to its forced replacement. Therefore, it is worth monitoring this device and conducting regular diagnostics.

How to find the reason

Let's start by checking the electric motor. Disconnect the electrical wires and connect directly to the battery, observing the polarity. If the fan doesn't start, that's the problem. If it works, you need to look for another reason.

Check all contacts on the connectors, as well as behind the relay and fuse. They are located in an additional mounting block, which is located on the right side of the instrument panel next to the lower heater duct.

The fuse (50A) can be checked with a tester; it is better to take a working relay and install it in the appropriate socket. If the problem is not resolved, continue.

Check temperature sensor. Warm up the engine to operating temperature, stop the engine and disconnect the sensor. It is located on the top of the thermostat housing. When the sensor is disabled, the controller must independently start the fan for continuous operation.

Start the engine and wait until the fan starts. If the coolant temperature has reached a critical temperature and the fan does not turn on, look for a broken wiring.

Do I need to change the fan?

If you determine that the problem is in the fan itself, or more precisely in its motor, you can try to fix it. Most often it stops working due to broken brushes or problems with the rotor bearings. The commutator or winding crack is rarely damaged.

If the fan cannot be repaired, it must be replaced.

Under no circumstances should you drive a vehicle with the fan not working. Overheating of the engine inevitably leads to the destruction of rubber hoses of the cooling system, seals, and can also cause failure of the piston group elements.

Modernization of Kalina SOD

The main problem of the Kalina cooling system is the formation of air locks. Today there are a number of effective ways to eliminate this defect. The reason lies in the design features of the SOD. The operation of the cooling system is based on the interconnected functioning of many parts. The use of the large and small circuits depends on the temperature of the antifreeze circulating through the system. The normal operation of the entire power plant depends on this.

You can modify the cooling system yourself or at a service center. Professionals rarely engage in all sorts of modifications, recommending replacing or repairing a particular component. This method may be more expensive, but not always more effective.

Classic ways of improvement

In order to solve the problem with the formation of air locks, you need to remove the expansion tank cap and start the engine. Then wait until the coolant temperature rises to the critical red zone until forced cooling by the fan comes into operation. After this, you need to press the gas pedal several times and turn off the engine.

If the method is ineffective, there is another method. To do this, you need to dismantle the engine protection, loosen the clamp and remove one of the tubes of the throttle body heating fitting. Then unscrew the cap of the expansion tank and, applying a rag, start blowing into it until antifreeze begins to flow from the removed pipe. In order to modify the standard cooling system, many car owners install a more efficient 6-hole thermostat, install a coolant filter and another heater faucet.

To increase circulation efficiency, an additional pump is often installed.

Other upgrade options

If the car is equipped with an electronic gas pedal, the hose that previously went to heat the throttle assembly is now looped into the cooling system. To prevent the formation of air pockets, an additional pipe with a smaller diameter is used, which is installed instead of the above hose. The hose for the air duct is placed near the thermostat; for this, a tee is used, mounted in the pipe fitting to the radiator. The second end of the pipe is connected to the steam removal hose near the expansion tank (you will need another tee).

The modification ensures a stable operating temperature of 90 degrees in urban conditions, and the stove begins to warm up at 50 degrees.

The next improvement method is to equip the steam outlet with a special hydraulic fence. To do this, a tube from a dropper is mounted in the steam removal hose, which is immersed in antifreeze at the bottom of the expansion tank. As it cools, the antifreeze is drawn into the outlet pipe, which prevents air from the cooling system. If desired, you can combine both methods.

Is there a need to replace the fan?

Having determined that the fan or electric motor is faulty, you can try to repair it. Firstly, in Kalina 1.6 (8-valve), the cooling fan does not turn on if the brush is damaged or the rotor bearings fail. Less often, the problem should be in the distributor or winding breakage.

If the device cannot be repaired, the component must be replaced. Do not attempt to drive a vehicle with a damaged fan. Overheating of the engine automatically leads to rupture of hoses, wear and improper use of seals. action of the pistons.

Some improvements to the Kalina water cooling system

Today, drivers use several methods to upgrade the cooling system. For example, the factory cooling system is completely redone. At the same time, Kalina is equipped with a completely new thermostat with six holes. Thus, the coolant temperature becomes more stable. The cabin becomes much warmer.

To reduce the likelihood of failure of the cooling system, the Lada Kalina is equipped with a special filter through which coolant is supplied.

The installation of a furnace tap is also ideal. In addition, an additional pump is installed in the fluid supply system. As a result, antifreeze will move quickly through the channels, in winter the Kalina will receive enhanced heating, and in summer the engine will never overheat.

Looking for a reason

Start checking with the electric motor. To do this, disconnect the electrical wires from it and connect directly to the battery, observing the polarity. If the fan doesn't start, that's the problem. If it works, you need to look for another reason.

The fuse (50A) can be checked with a tester; it is better to take and install the relay. into the appropriate slot. If the problem is not resolved, continue.

Check temperature sensor. To do this, warm up the engine to operating temperature, turn it off and disconnect the sensor. It is located on the top of the thermostat housing. When the sensor is disabled, the controller must independently start the fan for continuous operation.

Start the engine and wait until the fan starts. If the coolant temperature has reached a critical temperature and the fan does not turn on, look for a broken wiring.

Do I need to change the fan?

If you determine that the problem is in the fan itself, or more precisely in its motor, you can try to fix it. Most often it stops working due to brush failure or problems with the rotor bearings. The commutator or winding crack is rarely damaged.

If the fan cannot be repaired, it must be replaced.

Diagnostics of the cooling system in your own garage

EV failure can be caused by several reasons. They need to be identified and eliminated one by one. Before working on the sensor, you need to check the following points.

Integrity of wires leading to the sensor

Visually and tactilely check the condition of the insulating coating of each of the two wires. If there is no damage to the polymer sheath of the wires, they are “ringed”. That is, use a multimeter in ohmmeter mode to check the presence of resistance at the ends of the conductors.

Electrical fan operation:

Cleanliness of the contact group

The cable with the chip is disconnected from the contact cup of the fan sensor. Visually check the condition of the terminals. If oxidation of the contacts is detected, they are cleaned with fine sandpaper. The connection of the connectors is restored.

Voltage

On the removed chip from the DVV, check the voltage with a multimeter. One of the contacts should show “0” V, and on the other terminal the device on the screen should display a reading of 5 V. During the test, the engine should be running in idle mode.

Fuse

If it is determined that there is no voltage at the positive terminal, then it is necessary to check the integrity of the fuse installed in the break in the supply wire of the sensor. A bad fuse is characterized by a burnt-out metal track. Then you need to install a new part and test its operation.

Relay

From the fuse panel, remove the relay from its sockets. Remove the plastic box by pressing the side clips. If burnt contacts are detected, the device is replaced with a new relay.

Electric fan relay:

Electric fan

Check the condition of the fan contact group. The EV is connected with additional wiring to the battery. If the fan does not turn on directly, then the problem is in its electric motor or bearing.

If all diagnostic stages do not reveal any malfunctions, then you need to check the fan switch itself.

Description

It is known that every Priora and Kalina has a cooling system that ensures normal engine operation and prevents it from overheating. One of the cooling devices of the unit is a fan sensor, the signal from which activates the ventilation device.

In Kalinas devices, this controller is designed so that it turns on the fan when the engine temperature reaches a certain point. Thanks to the fan, which must turn on according to a signal from the controller, the engine temperature will always be normal and will not exceed the permissible threshold. If the device does not work, the fan does not turn on, and the engine may overheat.

Sensor connection diagram in the cooling system

Why does the fan switch sensor not work on Kalina and Priora and what to do about it?

Modern domestically produced cars are equipped with various controllers and sensors that ensure full operation of the car. If one of the devices fails, this can lead to incorrect operation of the nodes. From this material you can find out what the Priora and Kalina fan switch is and what malfunctions are typical for it.

The main reasons why the radiator cooling fan does not work

Let's look at the main options and where to look for faults:

Thermostat. The thermostat from the Lada Kalina has been removed; if it fails, this is the reason that the cooling fan does not work properly. To diagnose this problem, you need to touch the down tube. If it's cold, the thermostat is dead. Many owners of Kalina cars are accustomed to this phenomenon, since it often breaks down, and they carry a spare tire.
If it's not the thermostat, the next step is to check the fuses. You need to make sure that they work and all the drivers too. The easiest way is to check them with a tester or ohmmeter. The fuse diagram can be found here. The relay box with fan fuses is located under the distribution console, next to the controller. The fan fuse has a capacity of 50 A and is designated number 3. The fan relay is number 1. Relay and fuse box. If the fuse is blown, you will have to remove the optional fan control unit. To do this, move the warm air duct to the side and use a 10 mm wrench to unscrew the fastenings of the device. Now it can be easily removed. It has two relays that are responsible for turning on the fan and for high speed. Let's diagnose them both.
Now you can move on to the darkest option - climb under the hood and “feel” the contact wires of the fan itself. Sure, there could be a cracked or broken wire, but there's nothing worse than a burnt-out winding inside the fan. In this case, the fan probably needs to be replaced.
Another reason why the fan won't turn on could be a faulty thermostat sensor. To start the fan in emergency mode, disconnect it from the power supply. You can check the sensor by removing the thermostat and dropping it into a pan of hot water; the thermostat should open.
The last reason why the fan may not work is a break in the circuit itself. Cooling fan wiring diagram

The thermostat was removed from the Lada Kalina.

If it is damaged, then this is the reason why the cooling fan is not working properly. To diagnose this problem, you need to touch the down tube. If it's cold, the thermostat is dead. Many owners of Kalina cars are accustomed to this phenomenon, because they do not often carry a spare tire with them.

The relay box with the fan fuse is located under the instrument panel console next to the controller. The fan fuse is rated at 50A and is number 3. The fan relay is number 1.

Relay and fuse box

If the fuse is blown, you will need to remove the auxiliary fan control unit. To do this, move the warm air duct to the side and use a 10 mm wrench to unscrew the bolts securing the unit. Now it can be easily removed. It has two relays that are responsible for turning on the fan and for high speed. Diagnose both.

Cooling fan connection diagram

Why doesn't the cooling fan on the viburnum turn on? several reasons to choose from"

Many owners of this model probably have to look for an answer to the question of why the cooling fan on Kalina does not turn on.
If it stops working, there is only one way out: stop and wait until the engine cools down. Otherwise, it will boil, the pistons will jam, and hello, major repairs. Within the city limits, this is not so serious: if you are in a hurry, you can leave the car and get where you need to go by public transport in order to deal with the cooling system later. But between cities, a non-working fan is a great headache. If you don’t find the cause and don’t eliminate it, it can take 8 hours to drive 40 kilometers without a tow: you drive 2-3 km, then you stop and wait for it to cool down. It's going to be a fun trip! Especially if there are tired children behind you who were planning to quickly get there and start resting.

Why doesn't the cooling fan turn on on Kalina? There are several reasons for this. Some can be fixed on site, while others will require additional spare parts. But even if you can’t start the fan right away, you can at least assess the prospects and start waving the cable as it passes a couple of hours earlier, while you still have the strength to do something.

We discard the darkest option

Before checking the remaining components of the cooling system, you need to make sure that the worst has not happened to you, and. I must say that in Kalina this is an extremely unreliable unit and for some reason it breaks down often and frequently. There are cases when it stopped working, even if it was changed the day before yesterday. Therefore, many experienced owners of this car, when going on a long trip, take a spare one with them. Yes, just in case!

You can make sure that the thermostat is normal (or not) by touching the lower radiator pipe. If it remains cold, it means that the thermostat is no longer alive, and you need to get a backup one or ask for a tow. In the absence of both fellow travelers and supplies, you will have to crawl slowly and sadly to the nearest service station.

We ring the chain

Having excluded the thermostat from the list of probabilities, we check the electrical circuit. For starters, fuses (how to check them correctly,).

The first is the one that is directly responsible for the electric fan. It is located on the side of the console, where the front passenger's feet are. It’s not difficult to get to it: unscrew the screw that secures the cover with deflectors for blowing warm air - and in front of you is the required spare part.

If this fuse is intact, you will have to climb further into the additional block. Use a ten key to unscrew the fastening bolt and pull out the entire assembly. At this stage, you need to be patient and careful: extraction is significantly hampered by a whole bunch of wires going to the block. If you pull one out, you will be stuck on the highway for a long time. But it doesn’t take long to look for a fuse in the block: there is only one there, exactly the one you need.

If this part is normal, we immediately check the relays - they are located in the same block and transmit voltage to the fan motor. There are 2 of them: located above the mounting strip on the left edge is responsible for the operation of the fan at low speeds, the one on the far right turns on its high speed. Both must be in working order.

If no faults are found here, you will have to crawl under the hood.

What will please you with the fan itself?

You need to check both it and the temperature sensor. Let's take a look at the electric fan first. To ensure that the engine is working, its terminals are connected directly to the battery. If it starts, it means everything is fine with the fan. Let's move on to the sensor. Depending on what engine is on your iron horse, the actions will be different:

For a carburetor: remove the plug connector of the temperature sensor (it is located, by the way, on the right radiator tank) and connect its terminals with a jumper. The fan started spinning - the sensor is working, the terminals just came off. Left dead - it's time to change the sensor;
When using the injector, we look for the sensor next to the thermostat and remove the connector from it. If the fan starts spinning, it means that the emergency mode has turned on, and your sensor has already burned out.

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Replacing the cooling fan Lada Kalina

There is no need to go to a workshop to replace the cooling fan. You can do this without much difficulty and on your own.

Required tools:

Ratchet socket or 10mm wrench;
spanner wrench or open-end wrench 8;
Crosshead screwdriver;
pliers.

Work order

Park the car on a level surface.
Raise the engine hood, disconnect the ground wire from the battery.
Use a 10mm wrench to remove the two screws that secure the air filter.
Disconnect the mass air flow sensor connector by pressing the latch.
Disconnect the purge valve connector from the air filter housing.
Using a screwdriver, loosen the channel clamp screw and remove the bushing.
Unscrew the 4 screws securing the air cleaner cover.
Remove the cover and remove the filter element.
Unscrew the air intake nut using an 8 mm wrench and remove it.
Using a 10mm wrench, remove the two nuts securing the fan cover on the right side of the car, then use an 8mm wrench to remove the two nuts on the left side.
Disconnect the fan power connector.
Remove the fan and housing carefully so as not to damage the radiator fins.
Using a 10 mm wrench, unscrew the 3 screws securing the motor and remove it from the housing.
Reinstall the new motor and rotor.
Screw the housing with the fan to the radiator.
Connect its connector.
Carry out the rest of the installation work in reverse order.

How to replace a fan

Having carefully figured out why the cooling fan of the Lada Kalina does not work, the faulty element must be replaced. If you have the necessary skills and dexterity, you can do the repairs yourself. The tools you need to prepare are pliers, a screwdriver, wrenches 8 and 10.

First, park the car on a level surface. Then lift the hood, disconnect the system from the ACB. Using a wrench, unscrew the air filter mounting bolts. Then disconnect the mass air flow sensor (simply press the latch) and the purge valve, which is located on the air filter housing. Unscrew the fastening screw and remove the folding machine.

Remove the air filter cover, remove the filter element, and remove the air intake. Then attach the fan cover and turn off the power to the fan. Once all of the above steps have been completed correctly, you can begin disassembling the fan.

Main reasons

Coolant temperature sensor malfunction There are two of them on the Lada Kalina. One provides data to the instrument panel, the second to the car's ECU.

Temperature sensor diagram for Lada Kalina.

We have a Kalina with a Priora engine (98 horsepower). It's quite cramped under the hood. The photo shows the location of the cooling fan under the hood.

Burnt contacts on the connector that connects to the fan. It is temporarily eliminated by bending the contact plate, then the block is replaced with a new one.

The most common breakdown is the malfunction of the temperature sensor due to its relatively low reliability. Finding the reason is easy on your own.

Verification algorithm

Disconnect the connector from the temperature sensor, which is located near the thermostat. When the sensor is disconnected and the ignition is on, the cooling fan should run constantly . If the fan does not turn on, it may be the fan fuse or the fan itself.

We remove the block from the sensor and turn on the ignition.

Cooling fan fuse diagram.

Sensor check

For a complete check, the sensor will have to be removed, which involves draining a small amount of coolant.

You can check the sensor with a tester in resistance . The probes of the device are connected to the connector terminals and the tip of the sensor is immersed in hot water. Table of indications.