Question about Whirlpool GH7208XR Convection / Microwave Oven
I have a brand new Whirlpool GH7208 right out of the box and installed yesterday. When I press the vent fan button, I hear the motor or relay get power to it, but the fans themselves don't spin. It sounds like a transformer hum. If I remove the vent filters and start the fans manually by hand while the swtich is turned on, The fans will start and spin up slowly. But then the fan switch seems to have no effect on fan speed, it always turns a the high or boost fan speed. Turning the fan switch to off will cut the power to the fan. If I turn the fan switch back on before fan stops spinning, then it will start back up again. If I let the fan come to a complete stop, it will not restart without a little hand spin. Any ideas?
I have checked all of the functions and operations of the Microwave and it all seems to be working fine. I have called customer support for warranty work but I want to see if anyone else has idea or suggestion before the repairman shows up.
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Posted on Jan 02, 2017
SOURCE: I have a whirlpool MH3184XPB
It's probably a shorted relay or triac on the control panel.
We repair these on a regular basis for customers nationwide with our guaranteed $39.95 service with a full one year warranty.
We have full details, plus critical safety, disassembly, and troubleshooting info at our site. You'll find a link to our site in our listing here on FixYa: http://tinyurl.com/yzjozk
NOTE: There should also be a "mini-manual" hidden inside the unit behind the control panel or hidden on the left side behind the grille, which is very helpful when troubleshooting.
Please feel free to contact me directly if you need more help.
We're happy to help and we appreciate your thoughtful rating of our answer.
William E. Miller, AS-EET
Posted on Jun 23, 2008
Tips for a great answer:
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If there is spark please do not switch on unless you have confirmed the fault. It is possible that the Magnetron is leaking and sparking to the ground. As you have mentioned it was stored, it is quite possible that insect can get into the oven and create soft spots. When you switch on these will create a short and make the voltage jump and in the long run damage the magnetron.
So Remove cover after disconnecting , check for dirt/moisture in the cabin, if so wipe clean and dry, check the magnetron and area clean and use an jet air to clean off.
Now switch the microwave power on and use a cup of water to test.
If you notice any sparks shut off as the magnetron or the main HT capacitor can be faulty. Replace with same type. If not check the waveguides within the cabin for food particles that can burn and spark, check for rust that can corrode and spark when the ceramic paint has worn out.
If there is heating without any issues, you can use the microwave safely
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