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The Home Smithy
The Home Smithy, Home Appliance Technician
Category: Appliance
Satisfied Customers: 9622
Experience:  30 years repairing appliances
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Maytag microwave MMV5207AA/AC installed above stove. I tried

Customer Question

Maytag microwave MMV5207AA/AC installed above stove. I tried to remove the halogen bulb underneath unit bulb broke and two pins shorted together. Didn't blow the circuit breaker everything out on control panel. I pulled the inline fuse and tested it with a multimeter; it showed 0 ohms. I guess it's good. What do I do next??
Submitted: 9 years ago.
Category: Appliance
Expert:  The Home Smithy replied 9 years ago.


Where is the in line fuse you are refering to located, please?

Customer: replied 9 years ago.
Howdy Home Smithy,

Maytag Microwave Model MMV5207AAW, SN: 11292453GN, Mfg July 2005

The 250 volt 20 amp ceramic fuse on the noise filter board. I tested it with my ohmmeter and got 0 ohms.

This afternoon I removed the mico controller board and found two open traces in the cooktop lamp circuit. I'm amazed that the fuse didn't blow. I went on line and found a replacement board for $155 + shpg. I downloaded the service manual and think I could probably check the other components out. I would like to know how to SAFELY DISCHARGE the HV capacitor. I don't want to buy a new board and zap when I turn the unit on.
Expert:  The Home Smithy replied 9 years ago.

Use a screwdriver with a plastic handle and ground the negitive pole of the cap to the chassis of the unit. Then acrost both the caps poles to be sure.

Are you sure you cant just solder on a jumper wire over the traces? Save you plenty of money if you did. But then again if it blew the traces then Im sure there is an IC or two that took it in the pathways too.


Let me know if you need anything else.


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Best regards, XXXXX XXXXX Smithy

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Customer: replied 9 years ago.
Howdy H S,

Thanks for the info. I'm going to be out of town thru Sun nite. I'll accept for now; but I have a few more Questions. I'll be trying to do the repair Monday with a repairman scheduled Tues just in case.
Expert:  The Home Smithy replied 9 years ago.

Not a problem. I'll be here.


Thank you for the accept.

Best regards, XXXXX XXXXX Smithy