Question about GE JE1590 Convection / Microwave Oven

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Microwave oven safety

Should you replace a microwave oven even though it is working okay

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  • jamesstott45 Jan 12, 2009

    our microwave oven is about 30 years old, my wife says it needs to be checked or replaced

  • William Miller
    William Miller May 11, 2010

    I wouldn't think so, but what makes you think you should?



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Well, there is the old saying, "If it ain't broke, don't fix it".

But if there are specific concerns, you of course want to do the safe thing and take are of it.

But since it's that old, I would probably not have it fixed.

I would think it would be more economical to instead replace it.

That's my two cents, based upon the circumstances I see.

Posted on Jan 13, 2009


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I'm experiencing the same exact problem as theresagolde experienced. PROBLEM:Our microwave stopped working suddenly. It's a GE JVM1330 and was made in 1996. The buttons on the control panel work...

You can modify a standard, typical micro switch available at many places or, you can get an exact replacement from GE parts placed or you can try or you can try a advertiser.

You are correct in trying the safety interlock switches ... they cannot stand the opening and closing of the door while the machine is running. To improve the live cycle of these tiny switches is NEVER open the door while the oven is operating.

Thanks for your question @

Jul 28, 2011 | GE JVM1330BW/WW Microwave Oven

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My microwave is now running at half power, even though the power level shows 10 on the display. I have to double the time to cook everything. I tried cutting the power to the m/w, and then turning it back...

Load test.

A simple safety test.
Place 1/2 litre of water in a glass container. Measure the temperature of the water.
Place in microwave and heat on full power for 1minute.
Measure the temperature after it has stood for 1minute.
If the temperature difference is more than 9 degrees Celcuis the magnetron is working and producing about 700Watts of heat.
If your microwave is labelled with 900 or 1000Watts. That is about right.
If the temperature is less then the magnetron is not working properly and may need replacing.

This a only a rough guide and any doubts you should consult an authorised service agent.

Mar 20, 2011 | Panasonic NN-S252WF Microwave Oven

1 Answer

Everything is working, but no heat. lights come on, turntable turns, fans run, but no heat

Normally this would indicate that the diode in the power supply for the Magnetron (microwave radiation emitter) has failed. I would recommend that the unit be serviced by a professional in this area, or disposed of because of the following:

1 The power supply for Magnetron Tube the produces thousands of volts and can produce a lethal shock even though the machine is turned off and unplugged. Really, I'm not kidding.
2 Working on a Microwave Oven can expose you to high levels of Radiation which can immediately
Damage internal organs.

That said, there is another even better reason.
3 Microwave Ovens are now very inexpensive to replace.

Even though I personally know how to fix them, I can't be bothered.

I hope I have been of help
Happy New Year,
Best, Mark

Jan 01, 2011 | Samsung SMH9187 Microwave Oven

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When I shut the door, the light stays on and the turntable keeps spinning, even though the microwave isn't on.

Issue with safety swich Door, and Relay Control on the main board ....Refer to Professional Microwave Repair ...Do not attemp to fix CAUTION HAZARD VOLTAGE INSIDE...

Sep 30, 2010 | Hotpoint RVM1435 Microwave Oven

1 Answer


F9 indicates a problem with the door latch.  There is a safety switch that will not allow the microwave to operate if it detects the door is not closed properly.  Even though physically it may seem the door is shut, the safety switch is not relaying the message to the onboard computer.  You need another door latch switch.

Mar 10, 2009 | Kenmore 63663 Microwave Oven

1 Answer

Our microwave stopped working suddenly. It's a GE JVM1330 and was made in 1996. The buttons on the control panel work fine, and the light inside turns on. We can enter a cook time, and it counts down as if...

It's one of the micro-switches (3) that are part of the interlocking safety circuit. I actually took my switch apart and fixed it, but 99% of those out there would (and should) replace the switch.

Dec 28, 2008 | GE JVM1330BW/WW Microwave Oven

1 Answer

Light Not working

The following is generic to most microwave ovens for the light:

Inside all microwave ovens there are sensor and safety switches that work with the door. There are also some electronics on the controler board or a daughter board that control the light. The fault would most likely be in those areas. Some models have a door switch that is specificaly for the light.

The service tech would start by testing all the sensor and safety switches. If these, the wireing, and the connectors are all okay, he would then verify the operation of the circuits for the light.

Jerry G.

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Not heating intermediately

If you have plug-in type watt meter, you can check the power draw of the oven when it is heating and it isn't. The magnetron is the primary power consumer of the unit, and by comparing the difference of power you can tell if it is the magnetron. Most likely your intuition is correct.

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Everything works except it doesn't heat anything

no, just 1 main fuse for everything. there are temp safety devices though, and door closed safety switches. Most likely failure though is the magnatron.

Dec 30, 2007 | Kenmore 64002 Microwave Oven

1 Answer

Microwave does not turn off

This is usually caused by either a bad door switch, a loose door switch mount, or a problem on the control panel.

Even though a door switch clicks, it may still be bad inside.

If you or a friend decide to look into it, we have critical information on safety, disassembly and door switches at our site, linked here on Fixya:

You can get Sharp parts from Tritronics at

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