What about it? Need more info.
If you have no speeds at all, including high speed and you have power at the fuse and the fuse is good, I would suspect the heater blower speed switch and or the electrical plug to the switch is cooked. If you have high speed only and the rest are dead, I would suspect the blower motor speed resistor.
Could be a bad resistor pack at the blower motor Could be a bad low speed relay
It all depends on what size motor that you chose. I believe that the Silverado feels and handles better than a Ram at high speeds.
it has very high speed but no load
The blower motor speed resistor is burned out. The high speed function bypasses the resistor. The speed resistor is generally located near to the blower motor.
Depends on the type of motor.
there is no fuse. for the high speed you have to have a working A/C motor
Blower motor control?
The maximum current of the pole changing motor when running at low speed and high speed depends on a few different things. The average when begin at low speed and using high speed is 1800 RPM points.
1. Induction motor has high starting torque, therefore use for operate pump which need high starting torque. 2. Induction motor operate on variable speed. 3. It can be used as generator when speed of motor is higher than synchronous speed.
high torque