The blower motor relay controls the current used to power the blower motor and is subject to the constant on and off switching.
Ac blower fan not working car.
The blower motor resistor or blower module gets hot as it powers the fan so often times they can burn out causing certain speeds of the fan in your car to stop working the fan can be stuck on one speed only work on high speed or not work on any settings.
The relay board provides voltage to many components of the air conditioner including the fan motor.
Turn the air conditioning on while the car is running.
The air conditioner won t run properly unless your engine is running.
Rotated all the unmarked relays around in the junction box.
Here is how to tell which.
Rotated all the pdc relays around they have the same id other than abs pump.
When the car ac is not blowing air from vents it is a sign of a faulty blower fan or air duct blockage.
Checked for battery at the blower when the car is running.
Start the engine and turn the air conditioner on.
Checked continuity of 40 amp blower fuse.
Relay boards are often misdiagnosed.
Without it the ac system will not be able to circulate any heated or cooled air.
If the relay board isn t working properly the fan might not run.
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.
A faulty blower fan can make the car ac stopped working suddenly.
Why isn t my air conditioner working.
There is no battery to operate the blower.
The blower motor is the component responsible for pushing air through the vents of your vehicle s heating and air conditioning systems.
Blower still does not work.
Blower still does not work.
Next move the fan setting from the highest to the lowest.
Before replacing the board make sure you check more commonly defective parts particularly the fan motor capacitor and the fan motor itself.
If air is not blowing from the vents it is not the problem of the refrigerant recycling system a c and can be attributed to the blower motor or a vent control actuator.
Carac not blowing air from vents because of the following.
The most common causes of broken air conditioning are leaks or compressor issues.