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Yes, a bad capacitor causes blower motor to become slow or stop. Since bad or shortcapacitor will make the surge of current and tripping of circuit breaker.
Start by checking the Audi's blower motor fuse. Check the blower switch, resister, and lastly, check the motor to find the problem.
Check the fuse and relay to start. If these are ok, then check the blower switch, the resister, then the blower motor itself.
when motor stops, tap on motor and see if restarts. if it does replace motor. there is a bad spot on the armature. if not check the blower resister.
Start by checking the fuse. If the fuse is good, apply 12 volts directly to the blower motor. If the motor runs it is good. Check all the wiring for loose or burnt wires. If all this checks out, then the Blower Motor Resistor Pack may be defective, or the blower motor speed switch itself.Start by checking the fuse. If the fuse is good, apply 12 volts directly to the blower motor. If the motor runs it is good. Check all the wiring for loose or burnt wires. If all this checks out, then the Blower Motor Resistor Pack may be defective, or the blower motor speed switch itself.
Could have just overheated
check blower motor fuses and if Ok GENTLY tap blower motor with a/c turned on should start back up if so it indicates a bad armature in the blower motor and is due for replacement soon, if it does not start back up, it means either a short has occurred in the wiring or it is a dead blower motor
because the blower motor is no good, for some reason it get damp in the blower motor chamber, and slowly the speeds start to go one by one until you just have high.
Check the blower motor resistor/relay pack usually under the hood connected to the blower motor. You can start by using a multimeter and see if you are getting voltage to the blower motor electrical connector. It should read between 12 and 15v. If not then most likely the resistor/relay need to be replaced.
There are a number of sites you can go to and purchase a blower motor for your car. I suggest checking Amazon, Ebay, JC Whitney and carpartkings to start. I am sure you will have no problem finding a replacement.
You gotta start by figuring out what's wrong with it. You need to determine if it's the blower motor itself, or the power supply, then troubleshoot to determine the exact cause.
If the blower isn't working, start with the easy first. Get out owner's manual and find all the fuse locations. Check which fuse controls the blower and then check the fuse.If there is no fuse for the blower, then you need a professional tech to test it. It could be the blower motor, a relay, a blower resistor, the blower switch or the wiring between any two or more of those components.If the blower motor is out in the open, you could try LIGHTLY tapping on it with the handle of a screwdriver. If the blower starts working right as you do that, then you have a bad blower motor.