Hi, I'm trying to repair and hack a boot dryer, but I need help understanding the circuit to figure out what's wrong.
Here is the circuit diagram:
I think the one of the 10W resistors is the main heating element, and the second is used to drop the voltage down from 120V to the 12V needed by the motor, together with the resistors on the LEDs, but in that case the voltage would be very dependant on the load, that will vary for that motor (specs) . I'm not sure how that can work to do not damage the motor.
I thing the diods are there to allow current flow only in one direction so the motor can work properly spining in one direction. But I don't know why to put two diods in series. Also, I don't understand the role of the zenner diod on the right of the diagram.
This is the board that contains the diods and the small resistors.
The problem is that the motor seem to lack power, so after understanding the circuit I hope to figure out which one is the faulty component.
Thanks a lot!!