Question about Kenmore 62622 Microwave Oven

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Microwave won't heat

My Kenmore microwave model number 62622 runs but will not heat. all functions on touchpad seem to work, but no actual heat.

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  • alf3223 Dec 06, 2008

    I have the same problem. Everything works but no heat is generated.

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  • 112 Answers

The two possible causes are a faulty door switch and a bad magnatron. You can pull the top cover off of the unit and check all of the door switches (there are 2-6 of them all on a common rail, me normally closed)). If the door switches all check out, replace the magnatron, diodesMicrowave won't heat - mag-glass_10x10.gif, and capacitor

Posted on Oct 28, 2008

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Posted on Jan 02, 2017

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1 Answer

My still fairly new kenmore 1000 watt microwave appears to be operating fine but doesnt heat. What might be the problem?


When you hit "Start" to microwave, do the inside light, cooling fan, and turntable all come on?

Any unusual noises? Is it louder or quieter than usual?

We have a sound clip of what a microwave should sound like when the cooling fan and high voltage section are operating here.

Post a new help request with the answers to these questions as well as the full model number from the tag on or in the unit.

A full Sears/Kenmore model number has 3 digits, a dot, then 8 more digits, such as ###.########

Apr 14, 2013 | Kenmore 62622 Microwave Oven

2 Answers

MICROWAVE NOT HEATING


Most likely you have a magnetron problem. Easy to replace (DYI) but make sure the high voltage capacitor is fully discharged first against the case.

Dec 11, 2009 | Kenmore 62622 Microwave Oven

1 Answer

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Sounds like a bearing is tightening up when it get heated up with use. Then after a cool down period it works normally until using it heats it up again. Eric

Sep 15, 2009 | Kenmore 62622 Microwave Oven

1 Answer

Kenmore microwave model 665.68681891 runs but won't heat


Test the high voltage capacitor, the rectifier diode.or the magnetron. If all this are fine, test the control board.

If it additionally does not spin and no light, then check also the door switch and fuse.

The diode and capacitors can br tested. The capacitor must be allowed discharge before testing, or you risk to get electrocuted, even if power is off. Capacitors can get discharged by shorting their two contacts.
Replace the magnetron if the checks and all of the high voltage component tests are good, but the unit still does not heat.

All locations, and description of this parts can be located using the diagram here: Counter top.

Parts must be tested to find out what is wrong.

Remember that microwaves are potentially dangerous devices if not repaired properly, the job must be done by a competent person.
A microwave energy leakage test must always be performed when the oven is serviced for any reason.

Regarding parts, contact the seller here to purchase parts. (here in UK).

Oct 25, 2008 | Kenmore 62622 Microwave Oven

1 Answer

Kenmore Galaxy Microwave Hood Combo Model 72180002400


Do the inside light and turntable come on when you try to cook?

Is it making any unusual noise or is it louder or quieter than normal?

Do you have the model number?

Jul 29, 2008 | Kenmore 62622 Microwave Oven

1 Answer

Start button on microwave does not work


Some numbers are missing off that model number. Would that be model 721.62622200?

(If not, please reply back with the correct model number off the tag)

If it's cooking with the programmed buttons, but Start is not working, it sounds like the keypad has failed.

The keypad for model number 721.62622200 is no longer available as a separate part.

So you'd have to buy the entire controller assembly, which includes the plastic frame, keypad, and circuit board, etc.

It is part # 4781W1M307A and it runs $110.10 at the Sears parts Web site.

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

Jul 17, 2008 | Kenmore 62622 Microwave Oven

3 Answers

Kenmore Microwave 62622 display says "locked" and will not operate


hold your finger on the locked button till the light goes out

Jul 04, 2008 | Kenmore 62622 Microwave Oven

1 Answer

Kenmore Microwave Hood Combination: over the stove Model #721.80602500


Disclaimer: I'm a DIYer, not a technician.

Our GE over-the-range microwave stopped producing heat yesterday while warming part of the T-giving feast. Everything else (fan, control panel, light) works fine.

After disassembly and testing last night, I discovered a defective "secondary door switch." Your Kenmore uses a similar switch (~$19 on-line), and that might be the problem. But it also could be other things, such as a bad thermal cut-out.

If you know anyone who's handy with a multimeter, most of the basic diagnostics seem to be pretty straightforward.

Nov 23, 2007 | Kenmore 62622 Microwave Oven

1 Answer

Kenmore 62622 (model) -microwave-loud noise -no heating


dis-assemble waveguide and clean thoroughly. try again. if no-go then failed magnetron. get new unit.

Jun 08, 2007 | Kenmore 62622 Microwave Oven

1 Answer

Kenmore microwave


If this has a controller that runs a microwave and an oven, then the problem F2 means a temperature related fault such as a bad temp sensor / thermostat or a defect in the control board. If it's just a microwave, then the problem is likely a failing keypad. In many cases, those can be replaced economically. If you repost with your exact model number (62622 is not a complete model number) then we can advise you further and more specifically.

Nov 22, 2006 | Kenmore 62622 Microwave Oven

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