Question about GE JVM1440 Microwave Oven

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Surface Light & Vent Fan Won't Work

Microwave surface light and vent fan won't work after trying to replace light bulb. Hate to have to call repairman when cost of repair could be half the price of unit. I replaced the only fuse I could find - was in front / top of unit.
GE web site only shows one fuse to replace so I assumed this was the one. No luck - any chance there is another fuse in back. This unit is mounted and difficult to get to anything else. Prior to removing I would like to verify another fuse?

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We see (and repair) this a lot. The problem is on the control panel, which we regularly repair nationwide for $39.95 postpaid.

This light failure often occurs when a bulb goes out and the filament shorts, or when the bulbs are removed or installed without first unplugging the oven from the power line. Either can cause such a failure on the controller.

This can often also affect the exhaust fan operation, too. The lights and fan can be inoperable or stuck on too.

Details of our service and critical safety information and disassembly information is at our site, and our link is at our listing here on FixYa: http://tinyurl.com/yzjozk

We're happy to help and we appreciate your thoughtful rating of our answer.

Posted on Mar 18, 2008

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We see (and repair) this a lot. The problem is on the control panel, which we regularly repair nationwide by mail for $39.95 postpaid in about a week or so.

This light failure often occurs when a bulb goes out and the filament shorts, or when the bulbs are removed or installed without first unplugging the oven from the power line. Either can cause such a failure on the controller.

This can often also affect the exhaust fan, cooling fan, turntable, and/or inside light operation, too.

Details of our service are at our Web site, along with a video showing how to remove a typical over the range control panel assembly in under 5 minutes.

Feel free to contact me directly with your brand, full model number and symptoms.

We're happy to help you with free advice and we'd appreciate your thoughtful rating of our answer.

William E. Miller
prototech@usa.net
http://www.microwavedisplay.com

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I replaced the light bulbs but they still do not come on and the vent fan will not come on either?


the fan and the surface lights are run through the control via the touch pad. if you tried to replace the bulbs without unplugging the unit 1st you probably shorted the board. this can be checked by lowering the touch control panel by first removing the vent above it to access the panel screw. at this point you can observe the control for burn marks

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It looks like the part of your computer board on microwave which responsible for controlling light and fan stop working. In this case you have to replace computer board.

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1. Check your circuit breaker for this m/w. Reset it.
2. Microwaves usually have 20A fuse inside. It could be broken.

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1 Answer

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We see (and repair) this a lot. The problem is on the control panel, which we regularly repair nationwide by mail for $39.95 postpaid.

This light failure often occurs when a bulb goes out and the filament shorts, or when the bulbs are removed or installed without first unplugging the oven from the power line. Either can cause such a failure on the controller.

This can often also affect the exhaust fan operation, too. The lights and fan can be inoperable or stuck on too.

Details of our service and critical safety information and disassembly information is at our site, and our link is at our listing here on FixYa.

Feel free to contact me directly for more information & help.

We're happy to help you with free advice and we'd appreciate your thoughtful rating of our answer.

William E. Miller
prototech@usa.net
http://www.microwavedisplay.com

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1 Answer

Surface Light and Vent Fan Not Working


We see (and repair) this a lot. The problem is on the control panel, which we regularly repair nationwide by mail for $39.95 postpaid.

This light failure often occurs when a bulb goes out and the filament shorts, or when the bulbs are removed or installed without first unplugging the oven from the power line. Either can cause such a failure on the controller.

This can often also affect the exhaust fan operation, too. The lights and fan can be inoperable or stuck on too.

Details of our service and critical safety information and disassembly information is at our site, and our link is at our listing here on FixYa: http://tinyurl.com/yzjozk

If your fuse is out, the oven will be totally dead.

Not sure what country the poster was from who mentioned that microwaves have or develop 14,000 volts inside...

Here is the US, microwaves only develop about 4,000V DC, not 14,000. Still plenty of voltage and current to be instantly lethal.

That's why I always refer folks to our critical safety information.

We're happy to help and we appreciate your thoughtful rating of our answer.

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The lights do get very hot, so they must be a sufficient distance from the lens. Was there an instruction sheet with the new lens? You may need to adjust the sockets upward. You might call a local GE-authorized servicer to see. Concerning the vent fan, this is a problem with the control panel assembly, which we repair nationwide for $39.95. Details are at our site, which is linked at our listing here on FixYa: http://tinyurl.com/yzjozk

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