The relay board provides voltage to many components of the air conditioner including the fan motor.
Ac blower fan not working car.
Blower still does not work.
Rotated all the pdc relays around they have the same id other than abs pump.
Next move the fan setting from the highest to the lowest.
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.
Start the engine and turn the air conditioner on.
The blower motor relay controls the current used to power the blower motor and is subject to the constant on and off switching.
Here is how to tell which.
Rotated all the unmarked relays around in the junction box.
The air conditioner won t run properly unless your engine is running.
Checked for battery at the blower when the car is running.
Before replacing the board make sure you check more commonly defective parts particularly the fan motor capacitor and the fan motor itself.
Without it the ac system will not be able to circulate any heated or cooled air.
A faulty blower fan can make the car ac stopped working suddenly.
Having your car s air conditioning go out suddenly can ruin your day fast.
If the relay board isn t working properly the fan might not run.
Turn the air conditioning on while the car is running.
Checked continuity of 40 amp blower fuse.
The most common causes of broken air conditioning are leaks or compressor issues.
Why isn t my air conditioner working.
Carac not blowing air from vents because of the following.
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.
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.
Start with the fan speed turned to its highest setting.
When the car ac is not blowing air from vents it is a sign of a faulty blower fan or air duct blockage.
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.