Hi @jon14599
Check if the door switch is electrically closed when the door is closed.
I realize that you said the the motor turned after you manually rotated it with the door latched pressed, but this doesn't mean that the door switch is electrically closed when the door is closed normally e.g. less pressure on the switch actuator by the door than by your hand.
Other than that it may be a faulty start winding or centrifugal switch in the motor. The humming sound is due to that there's current flowing through the motor's run winding only, but this doesn't produce enough electromagnetism to overcome the inertia when the motor is idle. It needs current to flow through both the start winding and the run winding to start turning.
Once it gets up to speed then there's an internal centrifugal switch in the motor that operates and disconnects the start winding as it is only has thin wires and you don't want it to burn out. The run winding has thicker wires so it can run for a long time without getting too hot.
@jon14599
Apologies I overlooked that the gas ignition was working.
You mentioned the motor humming and not automatically turning but will turn when manually assisted so you need to get an AC clamp meter and check the current flow through the motor when it tries to start and when it is running after manually rotating it to start.
There will be more current flow when starting than when it is running.
If the current flow is approximately the same value when trying to start and when it is running then either the centrifugal switch is faulty or the start winding is faulty.
Hopefully the current values may be shown on the motor's compliance plate.
Here's an image of a typical gas dryer wiring diagram.
As you can see the centrifugal switch when operated has disconnected the start winding so that only the run winding is in circuit.
It is difficult to test both of the windings and the switch individually unless you can gain access to where they're all connected as sometimes they don't all appear on a terminal block but are inside the motor itself, that's why a clamp meter (example only) is good because you place it around the wire to get a current reading
(click on image)
2条评论
Yikes, I'd be concerned too! Jon, can you verify the model number of your dryer? I'd be suspicious of a timer and/or control board, but can't be sure until we look up service or parts information using the model number.
由 Jerry Wheeler 完成的
Hi Jerry,
The model/stock Number is 110.76912692 76912.
This is definitely way past my understanding.
Thanks for the help.
Jon
由 Jon 完成的