Question about LG 30" Over the Range Microwave Hood with Glide & Cook Tray, LMV1645S

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I have a 8 yr old Whirlpool microwave that will turn on but does

Not heat anything.

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If it runs but will not heat you most likely have a bad magnetron. Check the owners manual some magnetrons had a nine year part warranty. If yours doesn't it may be more cost effective to purchase a new microwave.

Posted on Jan 02, 2009

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1 Answer

My 5 yr old Whirlpool microwave stopped heating food. All other lights, displays, fan and turntable work. What could be the trouble?


If you do not have any experience in the repair of microwave ovens do not engage in their repairs because it is one of the most dangerous household appliances and the consequences can be disastrous. According to your description, low voltage circuit (220V or 110V) works well (light, turntable...). Obviously the problem is in a high voltage (HV) circuit which is made up of the magnetron, HV diode (rectifier), HV capacitor and HV fuse or protect diode. Failure is in any of these components in "HV circuit" or in the main board.

Dado

Jun 09, 2015 | Whirlpool Microwave Ovens

1 Answer

My Sunbeam Microwave SGB8901 lights up and seems to be working, but it doesn't heat anything. Is this fixable?


Only 2 years old? Hopefully you still have owner's manual, troubleshooting section should help you look for the problem. Hopefully, there is a circuit breaker, or perhaps a fuse. I hope it was not used with a metal object accidentally. No help? Check with Sunbeam Customer service, be nice, they usually are helpful.

Mar 04, 2015 | Sunbeam Microwave Ovens

1 Answer

Will not heat anything


i have a whirlpool microwave model WMH31017AS1 it turns on but heat up is there anything i can do

Apr 01, 2014 | Whirlpool Microwave Ovens

1 Answer

The microwave turns on, but doesn't heat up anything. Light turns on, fan turns on but no heat.


Hi,
Here is a tip that will help you to figure out what is wrong with yourMicrowave Oven....

Microwave Oven Basic Troubleshooting Tips

heatman101

djdjd

Nov 12, 2009 | Whirlpool MH7140XF Microwave Oven

1 Answer

Yesterday, I went to use the microwave and as I pushed start, I heard a loud pop and saw sparks behind the vent cover. The microwave light and turn table work fine, but it does not heat. Is it repairable?


sounds like your magnetron went out . check how old it is, sometimes the manufacture gives a 5-10 yr warrenty on part if no warranty on unit then it may not be worth fixing depending on how much u spent on it. part roughly 89.99-139.99 labor 85-165.00 depending on who u use and were u live. hope this helps . thanx..

Oct 07, 2009 | Whirlpool Microwave Ovens

1 Answer

Microwave doesn't heat anything


This more than likely is the magnatron,< heats food >, making noise and not working. it isn,t really easy fix and can be done if you get part and experienced person to walk you through it. Most GE magnatrons have at least 5 yr warranty and if it isn't that old call them first.

Apr 23, 2009 | GE JVM1320 Microwave Oven

1 Answer

Sanyo microwave model em-s5002w won't heat...sounds louder


Sounds like a component failure in the microwave circuit.

It will be one or more of the following -

Fuse
Diode
Capacitor
Transformer
Magnetron

Reply back and I can help you more. These failures happens to new or old microwaves.

Feb 01, 2009 | Microwave Ovens

1 Answer

4-yr old microwave gold accusystem


If it is working but not heating, then test the high voltage capacitor,the rectifier diode.or the magnetron. If all this are fine, test the control board.If turntable is not running check also the door switch.

The diodeand capacitors can be tested. The capacitor must be allowed discharge before testing, or you risk to get electrocuted, evenif power is off.Capacitors can get discharged by shorting their two contacts.
Before replacing the magnetron test also the control board.
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.

You can also order from MicrowaveSvc , they also provide parts.

Oct 27, 2008 | Whirlpool MH7140XF Microwave Oven

1 Answer

GE JVM1870 Runs, but won't heat up


use a high voltage probe to check high voltage, if present replace the magnatron if no HV replace the high voltage board this is the board that has the heavy wires to the magnatron

Feb 06, 2008 | Microwave Ovens

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