My Amana natural gas dryer quit running. I can push the start button and the buzzer goes off. I've tried starting it with the door open and safety interlock depressed while turning the drum at the same time (assuming the motor might be going bad) but this resulted in the same behavior - buzzing and wouldn't start spinning.
Thanks in advance for suggestions!
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Hi @axum
If there's a buzzing or humming sound coming from the motor then it seems like a problem with a motor winding.
There are two windings in the motor, a start and a main winding.
Both windings are connected when the motor is first switched on, so as to produce enough magnetic flux to overcome the inertia of the motor in the idle condition allowing it to start to rotate.
When the motor gets up to speed there's an internal centrifugal switch that operates to disconnect the start winding, so that the motor can run on the main winding only.
The start winding has only thin wires so you don't want them to burn out. The main winding has thicker wires so it can run for long periods without overheating.
Since it doesn't continue to rotate when you manually spin the tub it sounds like the main winding is faulty.
Check the motor wiring connections of the motor itself e.g. loose etc.
Unfortunately you can't use an Ohmmeter to test the individual windings because they're connected in parallel via the centrifugal switch, which may be buried somewhere inside the motor.
Although looking at the wiring diagram if you disconnect the harness wires from the motor and connect the Ohmmeter between terminals 5M and 4M if all was good you should read between 1.2-1.8 Ohms i.e. the specs show the motor windings are between 2.4-3.6 Ohms each so since they're in parallel, the resistance is 1/2. If you measure 2.4-3.6 Ohms a winding is faulty. Do this with the power disconnected from the dryer
If the motor is faulty the part number is 279827. (supplier examples only)
Search online using the part number only to find suppliers that suit you best.
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Thank you for going into so much detail! The rubber o-ring at the end of the motor spindle is beginning to rot out, as well. Using your info, I'm going to be checking into this further a little later today.
You're one of those who make iFixit such a great place - thank you for the help!
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