Radio shack timer

The motor for the rotator is bad. It has to be replaced.

Possibly, but I would first suspect the connector that goes to the thermostat, since you say it melted.

You should cut back both wires an inch or so until you get bright shiny copper (not dull or pinkish color).

Then install new connectors. They're usually standard 3/16" or 1/4" crimp-on fast-on type connectors. You should be able to get connector from places like Walmart, Radio Shack or an automotive store.

There's a YouTube video (not mine) showing how to crimp connectors here.

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Check primary and secondary interlock (door) switches. DISCHARGE high voltage components first with no power applied prior to touching anything in the unit. Failure to discharge High Voltage Components can result in death

If there is no heat, then it's probably a defective magnetron.

The turntable motor is defective and must be replaced to remedy the situation.

Is this a USA made uint.

Typically, a no heat condition is the fault of burned door safety interlock switches. Check the switches with a contuinity meter. The no turning condition may be a belt.

You will have to remove the shell in both cases to make this repair.

www.digi-key.com or www.newark.com stocks those fuses.

I need the same part, Bravetti won't sell me the timer as they say it is a non-consumable part but they will fix it if you send it to them. FAIL!!

Yes - please buy a new one.
Unfortunately microwaves have 2 positions - working or dead!.
The cost to resurrect from the dead is all out of proportion with the cost of buying a new one which will have at least a 12mths guarantee