Why does my blower motor stay on when car is off?
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.
Why does my blower fan keep running?
You’re using the wrong thermostat fan setting. Your fan limit switch is on “manual override” There’s a shorted thermostat wire. There’s a shorted wire at the fan limit switch.
Why does my car AC fan keep running after I turn it off?
It is ok for the engine cooling fan to keep running for a few minutes after turning off the car. Your car fan will run for a few minutes after you turn off the car then turn off. When the engine is turned off, the coolant doesn’t circulate, and the heat stays trapped, therefore prolonging the engine from cooling.
Why does my interior climate control fan stop working?
Recently my interior climate control fan stopped working. Turn the switch, nothing happens, on any speed. OK.. I went through and replaced all the major culprits.. a new blower motor, new blower resistor & harness, and new blower relay.
Why is there no power going to the blower motor?
If all the switches are on, and there is no power going to the blower motor, then the problem lies somewhere else. Next spot to check would be the relay for the blower motor.
How does a blower motor controller work on a car?
It’s really a simple concept: the blower motor controller pulses either the power or the ground circuit on and off depending on which fan setting you choose.
How does a blower motor reduce the speed of a fan?
In a vehicle equipped with a blower motor resistor, voltage is reduced by the value of the each resistor based on the position of the fan switch. The lower voltages result in lower fans speeds. The downside of blower motor resistors is that, in order to reduce voltage, a resistor converts the energy into heat.