Question about Kenmore Microwave Ovens

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Kenmore hood microwave door was slammed shut, now it won't power on. Fuse is good, door switches don't look damaged or dislodged. I haven't ohm'd the switches. They should not be the problem as the display doesn't even light up. What could be the problem?

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  • 17,129 Answers

While the door was slammed it is possible that the connection to the main board was disconnected. so since there is no display I recommend that you check the power to the processor board, check if the LT circuit is working , if the board fuse has failed or if the power supply here is faulty.
Only if the display comes back will it confirm the working o the processor.

Posted on Apr 01, 2011

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Why does my Kenmore microwave keep running with door open?


there are little fingers on the door that latch it to the microwave when you close it. there is a switch in the microwave that those fingers touch. something must have gotten in there and now the button is stuck. unplug microwave locate switch and try to clean around it to dislodge it. good luck hope this helped.

Apr 02, 2015 | Kenmore Microwave Ovens

1 Answer

Microwave power off, but will flicker when door shuts


Please inspect the plastic latches that should actuate the door switches. Sounds like you may have broken one when slamming the door too hard

Mar 20, 2014 | Samsung SMH9151 Microwave Oven

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GE microwave oven model#JVM1441BH04 when you close door on switch activates and oven comes on. Only goes off when door is opened.


HELLO.

the problem your are experiencing with your microwave oven is a failed interlock switch.
Be careful when closing your microwave door. Slamming the door too hard is one of the main reasons that the interlock switch is damaged.

Slamming the microwave door shut can easily blow the microwave fuse, but they can also blow due to problems with the interlock switches.
A microwave oven will not function until the fuse is replaced.

Instruction on how to replace fuse on microwave.

1. Unplug the microwave from the electrical outlet to prevent electrocution. Place the microwave in a well-lit area to be able to locate the fuse.

2. Use a screwdriver to remove the outer cabinet of the microwave, and follow the power cord to the fuse. The fuse is located 2 to 3 inches within the microwave and is attached to the power board.

3. Observe the fuse to determine if it is blown. Blown glass fuses will produce burn marks on nearby surfaces, or the internal fuse wire will be black and melted, while ceramic fuses show no outward appearance of being blown.

4. Determine if a ceramic fuse is blown by testing it with an ohmmeter. If the ohmmeter reads zero ohms, your fuse is not blown. Other readings on the ohmmeter show that your fuse is blown.

5. Replace the blown fuse by popping it out of its holder, and snapping a new fuse in its place. Tighten the fuse clips by squeezing them together with your fingers.

6. Replace the outer cabinet of the microwave, and plug the microwave back into the electrical outlet. Test the microwave to see if it's working properly.

thanks.

Sep 22, 2011 | GE Spacemaker JVM1640SJ Microwave Oven

1 Answer

My wife slammed the door and now the microwave does not work. it popped the fuse box and also cut the power to the stove. i flipped the switch in the fuse box and the stove came back on but not the...


You can try to take the unit down and open the cage. Look at the door safety switches and see if they also popped out of place. She might have permanently damaged the door. But don't panic just try what I just explained. Turn off all power first at the breakers.

Jan 05, 2011 | KitchenAid KHMS155L Microwave Oven

1 Answer

Kenmore microwave 80404400 no power


This is typical of the 20 amp fuse blown. It can blow due to slamming the door or even opening the door to quickly while it is running. It could also blow if there is a failure of one of the door interlock switches. This fuse is ceramic and looks similar to a cylinder automotive fuse and is located behind the control panel on this model.

Apr 20, 2010 | Kenmore 80412 Microwave Oven

2 Answers

Ran on power for 10 minutes, thought it was on timer.


First, check the fuse usually located above the display, inside the top lid.  You can't see if it's blown, so you must test it for continuity with a meter or self powered test light.  Usually fifteen amp, and of the ceramic variety.  (available at radio shack type places) If the new one blows instantly, it's likely a door switch shorted out.  If it blows after a few seconds, it could be the magnetron gone bad, or internal arcing.  The main transformer will sometimes short out, but that's rare.   Be absolutely careful, should your fingers venture around the magnatron connections down below, as there is high voltage and current that can kill you.  This warning applies even when it's unplugged!
The door switches operate together, so if one slams the door shut it will often blow the fuse with no other damage.  Sometimes the crow-bar switch will sustain damage in the process.  Usually, if the switches click individually, they're good.  If one doesn't click, it'll almost always be shorted.  They're located behind the door catch, inside the unit beside the display board, and a bit hard to access.  You will need to reach past the magnatron for this, so be careful.  

Jul 15, 2009 | Whirlpool GH6177XP Microwave Oven

1 Answer

Kenmore over range microwave oven / no power at all


Unfortunately, there is a good chance that when the bulb shorted out, it damaged the control board. The only way to know for sure is to do some electrical testing with a volt/ohm meter and the wiring diagram located within the appliance. The relays for the fan and the lights are part of the board. The power should always be disconnected when these bulbs are replaced or the board will be damaged. We would have an appliance repair person take a look to see what the deal is with the microwave.


Go here for Kenmore Microwave Parts: http://www.repairclinic.com/Kenmore-Microwave-Parts

www.RepairClinic.com

Feb 05, 2009 | Kenmore 62622 Microwave Oven

1 Answer

Where is the fuse located


It would be helpful if you could reply back with your brand and model number, but I can give you a good answer without it.

First of all, this won;t be a problem with the fuse. When a microwave's fuse blows, the unit will be dead.

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. Its continuity must be checked.

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

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

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

If yours is not listed, please reply back with your brand and full model number.

If you think the problem is on the control panel, which we repair these nationwide by mail for $39.95 postpaid.

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

Mar 25, 2008 | Microwave Ovens

1 Answer

Keypad only works


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.

This can be caused by slamming the door or by habitually opening the door while it's cooking without hitting the Stop pad first.

If you or a friend decide to look into it, we have critical information on safety, disassembly and door switches 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.

Dec 22, 2007 | Kenmore 62622 Microwave Oven

1 Answer

No Power Whirlpool MH7140XF


does it not light up at all? A microwave has a fuse on it. Probably accessible from the back panel. if not you would need to disassemble it. Most likely cause of this is slamming the door broke one of the safety switches the door has so the microwave knows when the door is open. And it shorted against something when it broke. It might have simply blew the fuse but then again you might have fried it.

Oct 01, 2007 | Whirlpool MH7140XF Microwave Oven

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