A variable speed module in a motor can work with ac or dc source
DC Motor works on DC source and AC motor works on AC source
either the switch or the fan motor
BMW = Berlin Motor Works, BMW is a German company
it is either a bad switch on your controls, or your blower motor is going out
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Yes the Induction motor works on Electromagnetic induction principle.
Only a DC motor uses direct current, and the reason is that it is the only supply available. There are also plenty of AC motors used when there is an AC supply. DC tends to be used for low-power devices like fans in electronic equipment.
If the fan works on at least one of the settings then it most likely the resistor pack. The fan either works or doesn't work.
Baravian Motor Works
A 120 volt motor is the inducer motor. It works the furnace.
the resistor for the blower motor is busted blower works on high with out it
Generally with any power windows you need to check if you have power & ground to the motor. If you can put power to it, and it works, that tells you the motor is functioning. Then you need to replace the switch. If the motor doesn't work either up or down. Then the motor is bad.