Question about Microwave Ovens

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Model B40, fairly new unit but still used, power light comes on, pump motor whirrs for about one minute fifty seconds and then shuts off. No other lights come on, no water is pumped into boiler, no output. Checked water level, checked water pump, checked line from water tank into pump, cleaned all ports. All appears to be good internally. Basically will not prime. Any additional ideas will be helpful. Thanks Richard...

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Hi,

Here is a tip that I wrote that will give you some things to try that will helpyou get your Keurig coffee brewer workingagain.

Keurig CoffeeBrewer not making a full cup of Coffee
heatman101

Posted on Mar 31, 2011

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SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

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My immediate reaction would be to cut your losses and buy a new unit as sooner or later you will run into a part that is no longer available.

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OUR AMANA Radarange. Has there been anyother complants on this unit. Any help would be appreciated. Any sugestions on whats wrong? If we try to use the microwave for more than 1 minute it shuts down in...


Hello,

the unit has developed a power fault. This issue is related to a power problem in as much as the unit turns off on it's own.

The problem is consistent with overheating on the power supply board of the unit.

The power supply board of the TV has few capacitors and IC. If any of these IC's gets short or become weak, it can cause the unit to turn off on it's own.

When current passes from electric outlet to the power supply board of unit. The current also goes to the weak/faulty part, then the current stops or slow and the board overheats and unit shuts off on it's own.

It might have worked fine in the past, but that's electronics for you. Power surge, irregular power supply, excess power supply, etc can affect the unit thereby making it to behave this way.


To actually find out what's wrong, you need to disassemble the unit with a screw driver and check what's wrong. You will be needing a meter and continuity tester in order to read the components on the power board, once you detect any bad component, you can make necessary replacement at any electronics accessories store withing our vicinity. This is the only way by which you can detect the problem.

Of course, testing the power board with a meter will require someone that has the ability. So it you can't, then you might be needing the help of a repairman or you can call a friend that has the ability to help you out.

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GE microwave oven squeals as carousel is rotating. Noise stops in a minute or so but begins anew when the unit is used again.


If it is the wheel on the turntable that squeels, wash the turntable in strong solution of washing up liquid and water.
If it does it without a turntable fitted, change the turntable motor.

Replacing the turntable motor.

The motor assembly is fixed to the base of the oven usually with two screws and access i obtained by removing the inspection plate directly beneath the motor. It is usally a plug in synchronus motor that revolves at a few revs per minute but the plastic cogs in the motors gear box fail and the motor assembly must be replaced. They are fairly inexpensive and obtainable usually from a domestic appliance repair shop.
If you feel confident, disconnect it from the mains power, remove anything in the cavity and turn it upside down if it is a tabletop model, a little more complicated if it is built in!
Remove the inspection plate and disconnect the motor. Remove the motor and go and get a new one. Re fit it and put the microwave back in its position. Plug it back in, with the turntable and plate. Put a cup of water on the plate inside of the oven and heat for 20 seconds to check the plate goes round.
Hope this helps.

Jan 01, 2011 | General Electric Microwave Oven

1 Answer

Sharp microwave (R-959m) turntable not moving


Sounds like a new turntable motor is required.

Replacing the turntable motor.

The motor assembly is fixed to the base of the oven usually with two screws and access i obtained by removing the inspection plate directly beneath the motor. It is usally a plug in synchronus motor that revolves at a few revs per minute but the plastic cogs in the motors gear box fail and the motor assembly must be replaced. They are fairly inexpensive and obtainable usually from a domestic appliance repair shop.
If you feel confident, disconnect it from the mains power, remove anything in the cavity and turn it upside down if it is a tabletop model, a little more complicated if it is built in!
Remove the inspection plate and disconnect the motor. Remove the motor and go and get a new one. Re fit it and put the microwave back in its position. Plug it back in, with the turntable and plate. Put a cup of water on the plate inside of the oven and heat for 20 seconds to check the plate goes round.
Hope this helps.

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1 Answer

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This sounds like a bad damper switch or motor. Double check the shut off time....... see if it's actually 59 seconds..
When you unplug the unit from the wall for 2 minutes then plug it bad in, you should be able to faintly hear a motor run for a few seconds. This is the damper motor running. This will verify that the motor is operating.....
Also, check the thermistor.

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I have model GE Microwave serial # JVM2070SK02. I start to cook something and it shuts off 5~10 seconds. Keyboard is still lit up, but no clock, fan, light and you cannot operate anything on the key pad. Unplug the unit and it resets. Sometimes it cooks, sometimes it doesn't? It is getting more frequent with the shutting down problem?

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This is usually a broken or misaligned door switch mount or possibly a bad door switch.

If you or a friend decide to look into it, we have critical safety information, info on door switch diagnosis and replacement, and
disassembly information at our site, linked here on Fixya: http://tinyurl.com/yzjozk

You can find an exploded view by entering your model number here: http://www3.sears.com

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We had this problem. It was installed improperly - to recirculate instead of to vent.

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