Question about Jenn-Air JMC7000 Microwave Oven

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Jenn-Air JMC7000 ADW

My JennAir quit working. The control panel still works. The time is displayed and you can select a cook time but the microwave never comes on when you hit the start button. The timer begins counting down the time and the light comes on, but nothing happens. Any advice would be much appreciated. Thanks

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MicrowaveSvc
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SOURCE: jennair

Do the inside light and cooling fan come on when you press Start?

If so, the problem is likely to be in the high voltage section.

If not, then the problem is likely to be related to the door switches or possibly the controller.

Generally, the most common causes of a failure to heat are:

- bad door switches or door switch mounts
- loose connection at the magnetron
- problem or loose connection on the control unit circuit board
- bad magnetron or other high voltage part (such as a shorted diode)

If you or someone you know decide to look into it, we have critical safety information, info on door switch diagnosis and replacement, and disassembly information at our site, and our link is at our listing here on FixYa: http://tinyurl.com/yzjozk

You can usually find helpful exploded view diagrams and order parts by entering your full model number here: http://tinyurl.com/gv383

Your model may also have a "mini-manual" hidden inside the unit behind the control panel, which is very helpful when troubleshooting.

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

Posted on Mar 30, 2008

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Just had an Adora DVM7195 installed. Every time I try to cook anything, the control panel says "Insert Food". In other words, I cannot get it to cook anything.


try working the directions backwards start command then open door put mug in then use select then time then start

Jan 07, 2015 | In Microwave Ovens

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GE spacemaker microwave turns off during cooking and display goes black


Step 1:


Door Switch




If the microwave runs for a few seconds and then shuts off, a door switch might have failed intermittently. Check each of the door switches for any signs of overheating, arcing, or burning. Also check each of them for continuity. Replace any of the switches that is visibly damaged or that only has continuity intermittently


mwswitchtest2.jpg

Step 2:

Main Control Board




If the microwave runs for a few seconds and stops there may be a short circuit in the main control board. Check other components first, these boards are often misdiagnosed.


Touchpad and Control Panel




If the microwave runs for a few seconds and stops the touchpad and control panel might be defective. There are several other components that can cause this problem, be sure to check any other components before replacing this board.

Touchpad




If the microwave runs for a few seconds and stops the touchpad might be at fault. This is not common. Generally speaking, if the microwave display is working and some of the buttons respond correctly but some don't, the problem is with the touchpad.

High Voltage Transformer




If the microwave runs for a few seconds and stops the high voltage transformer might have an intermittent short. This is not common. Check other components related to the microwave symptom first.

Thermostat




If the microwave runs for a few seconds and stops the thermostat might be defective. Watch our video on testing thermostat

Step 3:

2_8_2013_11_35_08_am.gif2_8_2013_11_35_30_am.jpg

Step 4:

2_8_2013_11_36_20_am.jpg

Step 5:

2_8_2013_11_37_03_am.jpg

Step 6:

use the DVOM tester and fix it. God bless you

Feb 08, 2013 | Microwave Ovens

2 Answers

My microwave is completely dead. I have checked the fuse in the plug and it is fine. Any suggestions?


Hello,

What you are to do to solve the problem is to do a general troubleshooting on your oven below are instruction to follow.

The Microwave is a counter top model with a variety of preset cooking options, including timed cooking at a variety of power levels and sensor-cooking settings for popcorn, rice, beverages and single-serving reheating.

The sensor cooking and reheating features detect increasing humidity levels inside the microwave and automatically adjust cooking time for various types and amounts of food. This microwave also includes a turntable and an electronic control panel.



Instructions below are step by step solution for your oven

  1. Check to see if the microwave will start. If it will not start and the display panel is blank, you may have a power problem. Unplug the microwave and then plug it back in, making sure that all three prongs of the power cord are fully inserted into the wall outlet. If this doesn't work, check your home's fuse box. Reset the circuit breaker to restore if necessary.
  2. Ensure that the microwave door is fully closed. Press the Clear/Off button to cancel any previous cooking instructions. Re-enter your cooking program, including cooking time and food weight if necessary, and press Start.
  3. If "Err" appears on the microwave display, press the Clear/Off button and reenter your cooking program. The "Err" message will appear during the sensor-controlled programs (Popcorn, Rice, Beverage or Reheat) if the door is opened before steam is detected or if no steam was detected within the maximum amount of time allowed by the microwave. Be sure to leave the door closed during these programs, at least until time is shown counting down on the display panel.
  4. If your control panel will not work or if an "L" is displayed on the screen, press and hold the Clear/Off button for a full three seconds to unlock the control panel.
  5. If your sensor reheat program is resulting in under- or overcooked food, first try decreasing the amount of food in the microwave; the sensor programs are designed for single servings of food. The sensor reheat function works by measuring humidity inside the microwave--do not use a tightly-covered dish with this setting because no moisture will be able to escape and the food will overcook. Be sure that cooking containers are dry; moist containers will increase the humidity in the microwave and mislead the sensor, resulting in undercooked food.
  6. If your turntable is not rotating, first check to ensure that your food container is positioned so that it can freely rotate without hitting the microwave's interior walls; using a smaller food container can fix this problem. If the turntable still will not rotate, lift the turntable from its support and replace it carefully, ensuring that it rests evenly on its support.
Good luck.

Thank you and thanks for using fixya.

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1 Answer

Microwave doesn't work


Sounds like you have a faulty control panel. I would use a meter and test the power from the control board to the magnetron and circuit board. Chances are the control panel is faulty

Jul 25, 2010 | GE Microwave Ovens

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My JennAir M170 just quit working, nothing.........bought in 1998. Time for a new one? If so, how do I go about just getting the micro for the combo unit? Or do I have to buy an whole new combo unit?


I would at least have a service tech look at it. Here are the comon items to check most of the time when a microwave just quits. 1 the internal fuse. 2 the power diode 3 the large capacitor 4. door open / closed micro-switches 5 the magnetron. The least likely suspect is the control panel yet can also cause the problem. You should still be able to keep this unit in service cost effectively. Until I had it checked out I would not give up on it.

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1 Answer

Express cook doesn't heat. Time cook seems to work at least sometimes


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

Oct 04, 2008 | GE Spacemaker JVM1640SJ Microwave Oven

1 Answer

KitchenAid KBMS1454R 1000 Watts Microwave Oven


Sounds like the keypad is okay, unless it might be intermittent.

Your wall voltage is within the proper range.

It sounds like it might be bad connections on the control board causing functional and display problems.

I work on control panels, actually, but I can't find any service data (yet?) on this model.

There should be a "mini-manual" hidden inside the unit behind the control panel or hidden on the left side behind the grille, which is very helpful when troubleshooting & testing.

Did you find it?

Any chance you could scan and e-mail it to me?

Please feel free to contact me directly.

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

William E. Miller, AS-EET
prototech@usa.net
http://www.microwavedisplay.com

Jul 04, 2008 | Microwave Ovens

1 Answer

Jennair microwave built in above oven. Clock and controls still work but no cooking. Timer even counts down. Any known solutions?


Do the inside light and cooling fan come on when you press Start?

If so, the problem is likely to be in the high voltage section.

If not, then the problem is likely to be related to the door switches or possibly the controller.

Generally, the most common causes of a failure to heat are:

- bad door switches or door switch mounts
- loose connection at the magnetron
- problem or loose connection on the control unit circuit board
- bad magnetron or other high voltage part (such as a shorted diode)

If you or someone you know decide to look into it, we have critical safety information, info on door switch diagnosis and replacement, and disassembly information at our site, and our link is at our listing here on FixYa: http://tinyurl.com/yzjozk

You can usually find helpful exploded view diagrams and order parts by entering your full model number here: http://tinyurl.com/gv383

Your model may also have a "mini-manual" hidden inside the unit behind the control panel, which is very helpful when troubleshooting.

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

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1 Answer

JennAir Microwave worked one minute then won't the next.


If this microwave is more than a couple of years old, it's possible that the magnetron tube or a rectifier has burned out. You'll probably need to take it to an experience microwave service technician to get a diagnosis.

Jan 16, 2008 | Microwave Ovens

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