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Have a kenmore microwave model 401.80093700 everything is dead no lights

No Lights ,Cked Power ! Does this microwave have a in line fuse in the back of microwave? and a TCO sw?

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5 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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  • 19 Answers

SOURCE: Ge Spacemaker microwave jvm240 wv Micro hood combo.

sounds to me like the magnatron has shorted out. i don't know of a way to test them unless you have some high dollar equipment. a continuity test prob wont tell you anything. what reading did you get on the cap when you tested it?

Posted on Jan 06, 2008

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MicrowaveSvc
  • 9098 Answers

SOURCE: I have a dead GE Advantium 120 Microwave in my RV.

This heat could have come from excess current draw due to a failing part, such as the magnetron, or an improper voltage level at the outlet. It should measure 105-125VAC.

A loose connection can also result in heat and melting.

I would recommend replacing the section of wire that's melted. You need to make a good solid connection with proper wire nuts and solid crimped connectors.

If you think the TCO may have been stressed, it should be replaced, too.

I would also check the fuse holder by seeing if you can twirl the fuse with your bare fingers while it's in the holder. If so, then it is too loose and the holder must be replaced.

You cannot just squeeze it tighter with pliers, because metal fatigue will make it go loose again, possibly resulting in a melted fuse.

Lastly, I would replace the primary interlock (top door switch). See http://www.microwavedisplay.com/doorsw.txt.

Then make sure that no one opens the door while the oven is cooking unless it is specifically called for in the cooking cycle. Opening the door while it is cooking leads to premature switch failure and heat / melting of the switches connectors and wiring.

You can find the full service manual online here.

Yours may have the revised circuit. You can see the "mini-manual" for that version here.

There should also 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.

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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.

You can find links to helpful exploded view diagrams and part ordering help here.

I'd recommend that your bookmark this link to your favorites.


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

Posted on Jan 10, 2010

Treefrog15
  • 127 Answers

SOURCE: Yesterday, my sharp carousel r-1460 went dead. I

If the 20A fuse is blowing, it is often the high voltage transformer or magnetron. If this is the case, and the microwave is not under warranty, replace it. Residential microwaves are generally considered disposable. Parts and labor are just too expensive. A magntron or transformer can cost more that half the cost of a new microwave.

Posted on Feb 25, 2010

diodeic
  • 1622 Answers

SOURCE: Hi my Panasonic Dimension 4

Hello,

Normally when they go completely dead it's because an internal fuse has blown. It sounds like the fuse might be loose. Additionally, on the GE's, when they quit heating it's often because the power module has failed. The power module is separate from the circuit board and can be replaced without taking the MW down. However, be aware that microwave ovens have a HIGH VOLTAGE capacitor that can really hurt if you place your hand in the wrong place, this capacitor on the power supply board may just have dead leakages gases capacitors.These capacitors always bulges up on it top,or puff up on it top.Replaced these gases leakages capacitors will get your microwave oven working perfectly back..

I hope that will help to solve the problem....

Posted on Aug 11, 2011

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1 Answer

Kenmore microwave 911 41479791 no power?


see this causes and fix it. God bless you
No Lights or Power, Unit seems Dead First check is the main fuse of the unit. On countertop units, you will need to take the shell off. The fuse will be close to where the cord comes through into the unit. OTR units, this main fuse is usually behind the control panel or possibly behind the vent. Usually the fuse is obvious if blown, otherwise test with an OHM meter, if open, replace fuse.
Some brands will also have a thermal cut-off fuse in the incoming voltage line to the control board. Older Maytags and Samsungs have this fuse in it. This thermostat looking fuse is usually above the oven cavity somewhere under the outside shell. Sometimes you can get to it through the vent of OTR models. Test with an OHM meter, replace if open.

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Sep 24, 2012 | Microwave Ovens

1 Answer

No Power


There is a glass fuse on a small board inside the case, unscrew the case and find it, get a direct replacement (same rating)

Jul 14, 2010 | Kenmore Microwave Ovens

1 Answer

Oven just went dead, no lights, no power etc. checked power source and everything works fine. Sharp Model R-9H66. looking for repair in spokane , WA..can you help?


Possibly the internal fuse. Unplug unit, remove all case screws on the back of the micro. Slide the case toward the back and remove. Look for a glass tube type fuse, simular to automotive fuses of the past. It should be located near the controls. If bad, the internal wire will be broken or burned, I have been able to find replacements at Radio Shack. Take the old one with you. If the fuse is good, I'm sorry, it's beyond my microwave knowledge level.

Mar 03, 2010 | Microwave Ovens

1 Answer

Have a GE model JVm1650bh05 Microwave. I put in


Check the fuse in the bottom of the oven ... near where the power cord enters.

Oct 19, 2009 | GE JVM1630 Microwave Oven

2 Answers

Does everything but heat food.


Sounds like the magnatron tube or it's fuse.

Aug 11, 2009 | Kenmore 80809 Microwave Oven

1 Answer

Down lights/night light not working


It's not the fuse. If the fuse is blown, the oven will be totally dead with no display, etc.

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.

At our Web site, you can get details of our service, plus we have a video available showing how to remove a typical over the range control panel assembly in under 5 minutes.

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.

Sometimes this will also affect the exhaust fan operation, too. The lights and fan can be inoperable or stuck on too.

Feel free to contact me
directly (and please remind me of your full model number) 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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Jan 22, 2009 | Microwave Ovens

1 Answer

Kenmore 665.61639100 quit working


A microwave can be dead for many reasons.

It may be the fuse, which is usually located on the floor of the oven behind the control panel or between the door switches.

If the fuse is good, it may be an open thermostat or thermal cutout (TCO) / thermal fuse on or near the magnetron or on top of the cavity / body of the oven.

If it goes dead for a while during or after cooking then comes back on, the magnetron is probably overheating and causing the magnetron thermostat to open.

Then when it cools, it closes the circuit and allows power through again.

When checking thermostats, if it has a hood fan thermostat, that should read open, as opposed to the others, which should read closed.

If it went dead almost immediately after pressing the Start pad, that's usually a shorted high-voltage capacitor.

If it went dead a few seconds after pressing the Start pad, that's usually a failing high-voltage transformer.

If it goes dead or blows the breaker (or GFI) when you plug it in or open or close the door, then there's a problem with a door switch or door switch mount.

If it's intermittent or random, it may be a bad connection, usually on the control board or a loose fuse holder, or even an intermittent fuse.

You should do a continuity test on the fuse while it's in the holder (with the microwave unplugged, of course) then turn the fuse by hand or take it out and put it back in, then test it again.

If you remove the fuse, then press the meter leads against the ends, it can allow internal contact to be made and make a bad fuse appear to be good.

If you or someone you know decide to look into it, we have critical safety information and disassembly information at our site, and our link is at our listing here on FixYa.

There should also 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.

You can probably find exploded views and order parts by entering your model number here at the Sears parts site.

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

Jul 27, 2008 | Kenmore 62702 Microwave Oven

2 Answers

Underneath Light funtion stopped working on Kenmore 62642 model


We see 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.

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.

Feb 17, 2008 | Kenmore 62642 / 62644 / 62649 Microwave...

1 Answer

Kenmore elite microwave


Does the digital display light up at all? Is it completely dead? Are you sure it has power? Have you tried another outlet? If the outlet is good and the unit is completely dead, the internal fuse may have blown. You can try to take the cover off (with the unit unplugged) and look for a blown fuse. Try replacing the fuse with an EXACT fuse of the same rating. Try plugging the unit back in again and see if the unit comes back on. If not, you may have a power supply issue or defective Magnetron.

Please let me know what you find and we'll go from there.

Good Luck,
- Jim

Jan 28, 2008 | Kenmore 62702 Microwave Oven

1 Answer

Kenmore microwave model 721.62644200


We see 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.

Jan 16, 2008 | Microwave Ovens

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