Question about GE Hotpoint Over-the-Range Microwave

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Microwave not heating food but does have power supply and fan running as if it is

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

Microwave Oven Basic Troubleshooting Tips

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Posted on Sep 30, 2010

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1 Answer

Microwave does not heat and makes a lot of noise


hi Richard, from experience i would say the power supply to the magnetron is at fault, you must take extreme care if you intend to test the supply as the high voltages involved...

Regards
Rob

Dec 07, 2015 | Dacor Microwave Ovens

1 Answer

Why can't you run a microwave without anything in it? What happens and can you fix the problem? I forgot to put the food in and ran it for 4 minutes with nothing inside. Now it won't heat any food.


A microwave oven works on the principal of a high power high frequency radio transmitter. The device that emits the microwave energy is a tube called a magnetron . When you run the microwave empty with nothing to absorb the microwave energy it is all reflected back to the magnetron causing it to overheat and destroy itself or cause failure in the High Voltage power supply due to excessive current draw.This is caused by standing waves.

Aug 08, 2014 | GE Spacemaker JVM1740 Microwave Oven

1 Answer

My Goldstar MV1608 stopped rotating and heating food yesterday. All other functions seem to be operating such as the light, fan, panel, etc. It is 18 months old. How can I fix it?


If there is no heating it is possible that the MAGNETRON has failed provided there is supply feed to the unit when the microwave is powered. Normally the magnetron along with the fan and light comes on when the microwave power is triggered. So since the rotation is absent it is possible that there is no power feed from the processor board which can be related to a driver failure. You need to check the output from the PROCESSOR to confirm and pinpoint the defective component. Check the relay to the magnetron trigger as this can be a suspect.

Oct 24, 2011 | LG MV1608WW Microwave Ovens

1 Answer

Not heating


Hello


Power Supply

Check whether there is a proper power supply. Look to see whether the cord is connected to a grounded 3-prong outlet and the cord is fully plugged in. If the electrical system is built-in and no power cord is visible, replace or reset the household fuse or circuit breaker.

Microwave Functions

Some basic microwave operational steps may affect whether the microwave is heating. Open and close the microwave door, as the unit will not function with the door open, and push "Stop/Clear" to cancel any previous settings, such as the timer, which do not heat the microwave oven.

Setting the Microwave

Once the power to the microwave has been reset, or verified as working, and the microwave is ready to run, select a new cook cycle and press "Start" to see if the microwave begins to run and cook food as expected. Allow the food to cook for the alloted time and then open the microwave door and check to see if the food has cooked or heated. Choose a longer cooking time and restart the microwave if food is heating but is cooking slowly.

Repair

If all efforts to troubleshoot the function and power to the microwave still do not get the appliance heating food as expected, there may be a repair issue that needs to be addressed. Contact professional technician for advice.

Oct 05, 2011 | Sanyo Microwave Ovens

1 Answer

Microwave lights up, turntable turns and fans run however food does not heat up. I have checked to ensure the power level is up which it is. Tried the express 1 minute as well as using the time mode and...


The problem is one of three things, the magnetron "common issue" the high voltage capacitor and diode can be a factor, all three work together in conjunction with the high voltage transformer to generate the high voltage that heats the food.

Mar 05, 2011 | GE JVM1850 1000 Watts Microwave Oven

1 Answer

Microwave doesnt heat, power is on fan is working


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

Microwave Oven Basic Troubleshooting Tips

heatman101

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Jul 06, 2010 | GE JVM1540SMSS Microwave Oven

1 Answer

Microwave runs, but food does not heat


In all likelihood the mangnetron has failed, or perhaps even the Power Supply. or a fault that is shutting the system down for safety reasons You need to have it serviced by a reputable service centre/man. Ensure you get a firm "Quote" before proceeding, and remember these days the cost of repair can equal or exceed the price of a new one.

Jan 31, 2010 | Microwave Ovens

1 Answer

My microwave is not heating up food. The timer works and the exhaust blows, but does not heat food.


hello mam please check the power supply at the magnetron which emits the heat and if the supply is normal change the magnetron so please call the engineer he will do it.

Oct 08, 2009 | Microwave Ovens

1 Answer

Microwave will not heat


Q - The microwave makes a loud "hum or buzz" noise but will not heat up the food?
A - 9 times out of 10 this is usually this is a bad magnetron, the other time is sometimes a bad high voltage diode. See components section.
Q - My microwave is running and sounds like it is working but will not heat up anything.
A - Many thing can do this but, common things are....loose high voltage wire.....poor solder joint on board.....magnetron.....power relay.....
 Q - The microwave display counts down and the inside light is on,  but nothing is heating and the fan is not running.
A - This most commonly is a bad door switch, other possible problems are a faulty relay or solder joint on the power module, but a bad door switch is most common.
Q - The fan in my microwave oven is not running will this hurt my microwave?
A - YES, the fan cools the magnetron and electronics, take the microwave in for service, most fans are not too expensive to replace.
Q - My microwave blows the fuse inside itself as soon as I push the start button.
A - Usually a shorted high voltage capacitor...see components section.



Mar 06, 2009 | GE Spacemaker JVM1640SJ Microwave Oven

1 Answer

My over the stove microwave will run however no heat. Popcorn digets do not count down but set numbers do. odd odor.



Q - The microwave makes a loud "hum or buzz" noise but will not heat up the food?
A - 9 times out of 10 this is usually this is a bad magnetron, the other time is sometimes a bad high voltage diode. See components section.

Q - My microwave is running and sounds like it is working but will not heat up anything.
A - Many thing can do this but, common things are....loose high voltage wire.....poor solder joint on board.....magnetron.....power relay.....
 Q - The microwave display counts down and the inside light is on,  but nothing is heating and the fan is not running.
A - This most commonly is a bad door switch, other possible problems are a faulty relay or solder joint on the power module, but a bad door switch is most common.

Q - The fan in my microwave oven is not running will this hurt my microwave?
A - YES, the fan cools the magnetron and electronics, take the microwave in for service, most fans are not too expensive to replace.
 

Dec 11, 2008 | Microwave Ovens

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