Originally Posted by
scottar
Switch, solenoid, circuit breaker or cable still at this stage but the good news is that the really expensive bit looks like it's ok. Now is where being able to use a multimeter comes in handy as you are going to have to hunt for what is causing your voltage drop. Switch is pretty easy. Disconnect and wrap the two terminals on the cables that were attached to the motor in tape to prevent any chance of shorts, turn on the breaker and try the switch in both directions. Should hear the solenoid clunk both ways.