Question about Microwave Ovens

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My microwave is LG 30L , bought it on 2005, is nolonger working. the problem is nolonger heating up the food. the brown board next to the lifhgt burnt out. but the glope is still working

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The magnetron has more than likely failed and considering the burnt out board, you would be further ahead replacing the microwave oven. The cost for a new one will be cheaper than getting the LG repaired.

Posted on Mar 11, 2011

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New waveguide cover and magnetron and you have a good microwave again.

Posted on Mar 11, 2011

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Posted on Jan 02, 2017

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I need instructions for 10in. microwave browner


Only place I've found is here: CorningWare Browner Instructions

As these dishes were designed by Corning for a 650 watt over, you can recalculate preheat and cooking times for your oven with the following formula:

650/(your oven's wattage) x (listed preheat time or cook time)

For example, for a Corning MW-9 dish, they list 4 minutes maximum preheat time. I have a 1,580 watt oven. So 650/1580 = .41 x 4 minutes = 1.64 minutes and about a minute and a half preheat. (MAX).

Mar 09, 2014 | CorningWare Microwave Ovens

1 Answer

Kenmore microwave oven doesn't heat food. I had


Make sure that the program controller is working if not check power - step down supply, the pads are responding- if not faulty pads- or the door switches, if the switch contact are not good then it will not trigger the processor to switch on the waveguides. If the lights or fan work without any display or action of program being triggered to start then it can be a possible fault on the main board or the processor. Sometimes insect secretion can short the board and display panel and so the processor can work in such an erratic manner. If so clean, solder and reset the board. Now identify the parts by clicking this link: http://www.espares.co.uk/advice/microwave/a/5/141/identifying-microwave-parts.html

If there is no heating please do not switch on unless you have confirmed the fault. It is possible that the Magnetron is faulty, the temperature cut off is faulty or the main capacitor is short. It is also quite possible that insect can get into the oven and create soft spots. When you switch on these will create a short and make the voltage jump and in the long run damage the magnetron. Check this link to know how a microwave works:

http://www.espares.co.uk/advice/microwave/a/5/1443/how-a-microwave-oven-works.html

So Remove cover after disconnecting , check for dirt/moisture in the cabin, if so wipe clean and dry, check the magnetron and area clean and use an jet air to clean off. Check the wave guide covers, if food had deposited
then it must be checked or replaced. See link:
http://www.espares.co.uk/advice/microwave/a/5/1146/how-to-replace-a-microwave-guide-cover.html

Now keeping clear of the microwave, switch on; use a cup of water inside to test.
If you notice any sparks shut off as the magnetron or the main HT capacitor can be faulty. replace with same type.
If there is heating without any issues, you can use the microwave safely

Jan 24, 2013 | Microwave Ovens

1 Answer

Hi there, I have a LG model: LMV1640DW1 microwave oven. Everything seems to be ok, but does not heat my food. The microwave is fairly new (feb 2008)


Possibly high voltage fuse or diode.If it is an inverter model may be circuit board problem.Not advisable to try and fix yourself very high voltage build up could still be present, contact your local repairer.

Apr 19, 2011 | LG Microwave Ovens

1 Answer

Lg 700 w microwave everything is working as normal but the food is not heating up


There three parts that will cause this, the first is the magnetron "heats food" the most expensive part, followed by the high voltage capacitor and diode, they work in conjunction to generate the high voltage to cook the food.

Feb 03, 2011 | LG Microwave Ovens

1 Answer

The microwave runs but does not heat the food. Unit was bought sometime in 2004 or 2005. (When I press the MICRO control pad, a number 16 with underscore colored red appears near the upper left hand of...


Whirlpool typically supplies a service sheet with schematics for servicing the oven. This is normally located in the compartment where the micro control board is and requires you to removes it to acess it. These service sheets have fault codes and causes on them.

If you are inexperienced at working with electronics I suggest replacing the unit as the cost to have the unit serviced will likely exceed the cost of a new unit.

Good Luck

Sep 07, 2010 | Whirlpool MH7140XF Microwave Oven

1 Answer

Machine is working but not heating


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

Basic Microwave Oven TroubleshootingTips

heatman101/././.

Jul 08, 2010 | LG LMV1314 Microwave Oven

1 Answer

MMV4205 1150 Watts Microwave Oven: all boards and timers work will not heat food m...


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

Microwave Oven Basic Troubleshooting Tips

heatman101

syjs

May 18, 2010 | Maytag MMV4205 Microwave Oven

1 Answer

Microwave has stopped working and now I receive a flashing No10 in a square and a flashing No 1 in a square.The rest of the oven works, the convection side, What now....help!?


My wife cannot wait forever for me to solve the problem with our Microwave....so I nhad to bite the bullet and take it in to LG for repairs.

Thanks for the good site

May 12, 2009 | LG Microwave Ovens

1 Answer

LG Microwave does not heat food


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

Thediode and capacitors can br tested. The capacitor must bealloweddischarge before testing, or you risk to get electrocuted, evenifpower is off. Capacitors can get discharged by shorting theirtwocontacts.
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.

Feb 27, 2009 | LG LTM9000 Microwave Oven

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