GE JVM1850 turns on but turn table doesn't rotate & light doesn't come on even though timer counts down. Doesn't heat & has low hum noise. Is it worth fixing or should I buy new? It is 8 yrs old.

William Miller

• 9179 Answers
• Posted on Jun 08, 2009

SOURCE: GE JE1640WA problem

Chances are you have a bad primary interlock (top door switch) or its mount is damaged or loose.

Door switch or mount trouble is usually caused by slamming the door or by opening the door while it's cooking without hitting the Stop pad first.

There are plastic mounts inside the microwave which hold the door switches and onto which the door latches lock when you close the door.

The screws on these mounts may be loose. If they get too loose, the switches will not be activated properly.

Sometimes it's a broken tab on the switch holder, allowing the switch to rotate just out of position. This tab can be hard to see, since it is under the bottom edge of the switch.

If the switch mount is broken, it's usually more economical and safer to add a dab or two of hot glue to the mount to secure the switch. Let it cool for about 30 minutes before using.

One test that sometimes helps is to gently lift up (and/or push down) on the door or handle as you try to start it. If it works or tries to work, then it's a door switch mount or door alignment issue.

There should be a "mini-manual" (tech sheet) hidden inside the unit behind the control panel or hidden on the left side behind the grille, which is very helpful when troubleshooting, testing, and locating components.



At our Web site, we have a video available showing how to remove a typical over the range control panel assembly in under 5 minutes.

(Your mini-manual may show that your primary interlock is the bottom switch, so go by it)

You can find helpful exploded view diagrams and order parts by entering your full model number from the tag on the oven here.

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

SOURCE: I have a GE SpacemakerXL Microwave Oven

Check the door safety interlock switches.

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