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My LG over the counter microwave will turn on but doesn't…

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my LG over the counter...
my LG over the counter microwave will turn on but doesn't heat. I looked up the causes and 3 possible solu, tions are the thermal fuse,. and 2 other parts.d a 3 year warrantyI will not call an LG tech since they are charging $265 to repair with no protection plan and $365 with a protection plan.The LG had a 3 yr warranty but is now 4 years old. I would order the 3 parts myself but the instructions warn me that the microwave may still carry lethal powers while unplugged.
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Submitted: 7 months ago.Category: Appliance
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Answered in 9 minutes by:
11/27/2017
Appliance Technician: Joel Swenson,
 replied 7 months ago
Joel Swenson
Category: Appliance
Satisfied Customers: 4,041
Experience: Owner at Scott's Appliance Repair
Verified

Hello sorry to hear you are having trouble, I'm Joel and will be glad to help you today.

Anytime a microwave runs but does not heat means that the magnetron ( Its purpose is to generate microwave energy. The high-voltage components accomplish this by stepping up AC line voltage to high voltage, which is then changed to an even higher DC voltage. This DC power is then converted to the RF energy that cooks the food.)

has failed and will have to be replaced. This is a dangerous repair because microwaves hold high voltage even when power is not being supplied to the unit, so it is highly recommended that only a qualified technician make this repair. The magnetron and also the diode that will need to be replaced usually run in the range of 140.00 -300.00 just in parts depending on the model. If you would still like to attempt this repair yourself and like me to find you the part numbers I would be glad to if you give me the model number of the unit, thanks.

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