If there is a problem of radiator fan not working in your car too, then you do not need to worry, today we will tell you some reasons due to which the radiator fan stops.

The biggest problem in any car is the closure of the radiator fan and due to this problem, the head gasket of many cars also explodes and costs a lot.

To avoid this problem, it is necessary to check the car beforehand, but even if it is known that the radiator fan has stopped, then we cannot find out the reason.

But today we will tell you about both the situation of radiator fan not working when ac is on and off, which you can check the problem.

top 8 reason radiator fan not working all car

You will get to see the information of what causes radiator fan to stop working below.

radiator-fan-not-working

(1) . bad fan fuse

The fuse is very important to run the radiator fan because it works to supply the current, the fuse has been installed to prevent the radiator fan from getting damaged.

The current of the battery does not go directly to the radiator fan, it goes through this fuse, if there is a short circuit in the middle, then this fuse gets damaged and the current does not reach the fan, which does not damage the radiator fan.

But sometimes this fuse turns off the radiator fan, due to excessive supply of current, the fuse gets damaged, even after the engine is heated, the radiator fan does not turn on and the engine overheats, so check the fuse.

(2) . bad fan realy

In many cars, along with the fuse of the radiator fan, there is a relay of the radiator fan in the fuse box near the engine, which works to run the radiator fan.

But we have seen that due to some reason or short circuit, the relay gets damaged, the ecm supplies current to the relay, but the relay does not turn on the radiator fan, and the engine overheats again and again.

(3) . low coolant level

One reason for not having radiator fan on is low coolant level, if the amount of coolant in the radiator is low or there is no coolant in the cylinder, then the radiator fan is not on.

Because the signal goes to the ecm only when the coolant heats up and the ecm turns on the radiator fan on the basis of that signal, but when the coolant is low, the ecm does not get the correct signal, which cannot turn on the radiator fan.

(4) . bad fan motor

One of the reasons for the radiator fan not being on is the failure of the radiator fan. We have seen in many cars that everything is fine but the motor of the radiator fan gets damaged.

We had a Honda City, that car had a problem of radiator fan not working, when we checked, everything seemed fine, but when we checked the radiator fan motor, it was found to be faulty, and the motor used to run after hitting it.

(5) . bad coolant temperature sensor

A major reason for the radiator fan not running is a bad coolant temperature sensor. If the coolant temperature sensor of any car gets bad then the radiator fan stops at the same time.

Because when the coolant heats up and reaches the proper temperature, the coolant temperature sensor sends a signal to the ecm and informs the coolant to be hot, which the ecm turns on the radiator fan, so whenever the radiator fan does not run, the coolant temperature sensor must check it

(6) . bad thermostat valve

A bad thermostat valve also turns off the radiator fan, this is an important part of the engine, due to its failure, the radiator fan stops as well as the car overheating.

When the thermostat valve goes bad, it does not open even after the coolant is heated, and due to its non-opening, there is no coolant supply, the coolant temperature sensor also does not work, and the radiator fan stops.

(7) . bad fan wire and connector

Bad fan wire and connector is the biggest and most commonly seen reason for the sudden shutdown of the radiator fan. It is seen in most of the cars that the fan wire is broken or its connector becomes loose.

Whenever there is a problem in the wire, the radiator fan stops, at that time all the sensors do their work, but the signal does not go to the radiator fan due to wire breakage and the radiator fan remains closed even after the engine is hot.

(8) . leak radiator cap

We told you many different reasons for the closure of the radiator fan, but there is a problem of leak radiator cap, on which no one pays attention, if the radiator cap of a car leaks, then the radiator fan stops.

When the radiator cap leaks, there is no pressure inside the pipe, and due to the leak of the radiator cap, pressure also leaks along with the coolant, which keeps the coolant hot but the radiator fan does not run.

If this is happening with you too, then check the radiator cap properly, if the radiator cap is bad then replace it, the problem will be fixed.

If the radiator fan of any car stops, then there can be reasons mentioned above, you can check the problem by checking all the reasons.

what happens when the radiator fan is off

The radiator fan is a very important part for all cars because it works to cool the engine, which keeps the engine temperature right.

All companies have fixed the temperature of the engine according to their cars, that means when the car starts and the engine starts heating up gradually, the temperature of the coolant starts increasing.

When the coolant temperature exceeds 90 degrees, the thermostat valve opens, along with a coolant temperature sensor, which sends a signal to the ecm and the radiator fan turns on.

But do you know what will happen when the radiator fan stops, when the radiator fan of a car stops, then the temperature of the engine keeps increasing and due to the closure of the radiator fan, the temperature of the engine increases very much.

And who has the problem of engine overheating, smoke comes out of the engine and the car shuts down, it has been seen in some cars that the engine stops taking selfies after heating up.

If you keep driving the car, then the headgaskit explodes and the engine may even seize, so whenever you see any warning light in the dashboard, stop the car.

Call your mechanic and take information from him, keep it closed until the car is fixed, if you drive the car Even when the radiator fan is turned off, the following problems can occur.

(1) . The warning light will turn on in the dashborad.

(2) . engine overheating

(3). engine will smell of burning

(4) . the car may turn off

(5). starting becomes hard

(6) . pickup goes down

(7) . headgaskit explodes

(8). engine may seize

conclusion

Hope you have got complete information about radiator fan not working and now you will not have any other problem related to it, whenever you have problem related to radiator fan, then check all the reasons, if you have problem, then you comment. we will help you

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Know the answers to some questions

Q . What is the biggest reason for the radiator fan to stop?

ans . Bad fuse and relay is the biggest reason for radiator fan shutdown.

Q Can we use bigger or smaller number fuse?

ans . If the fuse of radiator fan is of number 15, then you do not have to use fuse of 20 or 25, nor do you have to use fuse of number 5 or 10, you have to use only fuse of number 15.

Q . What to do when the radiator fan stops?

ans . When the radiator fan stops or the warning light is on in the dashboard, stop the car immediately, let the engine cool down for some time, check the amount of coolant in the radiator, then check the fuse relay fan wire and connector, if you do not understand anything. If you come, call the mechanic and call him but don’t drive the car.

Q . What is the biggest loss when the radiator fan stops?

ans. When the radiator fan is turned off, the headgaskit explodes, and the engine may seize up. This is the biggest disadvantage of the radiator fan turning off.

Q . Can a bad radiator fan cause vibration in the car?

ans. When the radiator fan starts getting damaged, the motor of the radiator fan gets played, then it starts to vibrate in the engine and inside the cabin, in this case it is right to replace the radiator fan.