In other cases the switch will turn on and stay on well past the cooling temperature threshold resulting in the fan running even when the engine is off.
Car ac cooling fan not turning on.
There is no battery to operate the blower.
Fortunately these systems are fairly easy to diagnose in the event of failure.
Blower still does not work.
A car s electric cooling fans are responsible for ensuring air flow over the radiator at low speed and failure will almost always cause overheating while in traffic.
The radiator s job is to keep the coolant cool so that when it returns back into the engine it is able to absorb more heat.
Rotated all the unmarked relays around in the junction box.
Car ac not blowing or is your car ac fan not working.
To utilize the ac on your car on demand the clutch compressor is activated.
Most vehicles today have one multi speed fan that blows air through a series of ducts and vents based on the driver s selection in their climate control system.
Broken or shorter signal wire.
If your air is blowing cool but not cold the problem could be a clogged filter cooling fan problem radiator trouble or it could simply be that you need to recharge your ac.
Having your car s air conditioning go out suddenly can ruin your day fast.
In order for the ac condensor to do its job it must stay as cool as it can.
Troubleshooting a car s air conditioner is an important part of knowing your car and can be a real life saver in the summer heat.
The engine of a vehicle has a combustion chamber where continuous explosions take place and as such the engine heats up very quickly.
To run this compressor the car s engine is directly connected to the pump rotor of the compressor with a belt.
When your air conditioner won t work put on your diy hat take a look at the system and try to figure out what s wrong.
If your car s ac isn t blowing air it could be a problem with your car s fan.
Checked for battery at the blower when the car is running.
Blower still does not work.
The most common causes of broken air conditioning are leaks or compressor issues.
Rotated all the pdc relays around they have the same id other than abs pump.
As for the engine coolant temp sensor if the coolant is not hot enough to make the fan come on then there is no need for the fan yet and there is no problem.
Automotive air conditioning system uses an electromagnetic clutch mechanism that engages the compressor to turn the ac unit.
