What should I do if my blower fan does not run?
First, make sure that power is getting to the motor. If power is getting to the blower motor.but the motor does not run, the motor may be burned out. If the blower motor is burned out, replace it. If the blower motor hums, check the blower fan to ensure that it spins freely.
Why does my blower motor keep running after I shut off the car?
Some customers may comment that the blower motor is inoperative or continues to run after the vehicle has been shut off. These conditions may be caused by a blower motor control module failure. This failure may occur when the vehicle is operated in ambient temperature conditions of -23 C (-10 F) or below.
Is there a way to turn off the blower motor?
My blower/heater motor switch will not turn off the blower nor willl it change the motor speed. It’s currently stick on high. Even if I turn the engine off and take out the keys the blower is still running. I had to discoinnect the battery to get it to stop.
When to replace the blower motor control module?
Important: Replace the blower motor control module if the vehicle experienced a blower motor control module failure in extremely cold ambient temperature conditions. Technicians are to replace the blower motor control module, also called the Linear Power Module (LPM), with the P/N listed below.
How to check if the blower motor belt is the issue?
To check if the blower motor belt is the issue, first ensure that the furnace door is fully closed properly, as the furnace will not work if the door is open due to a switch on the inside of the furnace door. Locate and turn off the main circuit breaker or safety switch for the furnace, to ensure there is no power going to it.
Why does my blower motor not come on?
You should be able to find this relay or sequencer by tracing the blower motor wires back to the relay or sequencer. If power is going into the sequencer or relay and not coming out when the 24 volts are applied then you have a relay or sequencer problem and the sequencer or relay will need to be replaced to get your blower running right again.
What do I need to troubleshoot furnace blower motor?
Removing the old furnace blower motor is not overly complicated and can be done in relatively short time and with tools you will usually have around the home. Things you will need: A pen and paper, or something to take notes with. Screw driver, depending on your model, it may be a flat head or philips head.