Jan 8, 2016 ... If your car's heater doesn't work, only works on certain speeds, or only cold air ... When the heater blower motor fails, the vehicle can be left without a ... or air conditioning is activated is another symptom of a bad blower motor.
The blower is used for moving air from either an outside source--referred to as vented air--or from cabin air past the heater core or air conditioning evaporator.
The operation of a blower motor is relatively simple. ... When air conditioning is desired, the air flow is ...
Apr 21, 2017 ... What is a blower motor resistor in a car, common problems, ... a failed blower motor resistor can cause a heater fan to stop working completely.
When a blower resistor is faulty, the fan will usually operate at one speed only, ... If a car's blower motor doesn't work at all, there are several components to be ...
Without a functioning blower motor your engine runs the risk of overheating. ... If your engine's working fine but the blower motor isn't, you can test the blower ...
Dec 6, 2013 ... But even a well-maintained motor might stop working, and then it's time to ... Do a resistance check between the white wire and each of the ...