Question about GE Spacemaker JVM1640SJ Microwave Oven

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The microwave runs, but does not heat up, what do we need to check?

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Most likely related to magnetron tube and diode this is for qualified tech only.

Posted on Nov 13, 2009

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Posted on Jan 02, 2017

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1 Answer

Microwave runs but doe not heat


follow this test and fix it. God bless you
  1. Check the power diode This electronic component is responsible for transmitting current in one direction. If the diode becomes defective it will cause your microwave to not heat. Test the diode and replace it if necessary.
  2. High voltage capacitor Responsible for storing electricity, this part is a key component in any microwave. Remove, discharge, and test the capacitor to determine if it requires replacement.
  3. Damaged magnetron Responsible for generating waves and producing heat. When your microwave is no longer heating properly, replacement will be required.
  4. Thermal Cutoffs Examine the thermal cutoffs on both the magnetron and the oven itself. Take off one of the leads and using a volt-ohm meter on RX1, check the terminals. If you get a result other than zero, replace the thermal cutoffs.

Nov 26, 2013 | GE JVM1190 Microwave Oven

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

2 Answers

Arching and sparking when run empty


microwave should never run empty. the reason is that the microwaves needs to heat something. more info : google - how microwaves heat food?

Dec 26, 2010 | GE JES1851 Microwave Oven

1 Answer

Microwave works but doesn't heat food.


check if it heats through a different outlet by its self if not element is shot but if it works you need a better electrician unfortunately because you might have a new fire hazard with incorrect wiring but thats really only way to find out

May 07, 2017 | Amana MVH210W Microwave Oven

1 Answer

JVM1640WB007 MICROWAVE RUNS BUT DOESN'T HEAT. WHAT COULD BE THE PROBLEM?


It is most common for the magnetron in GE microwaves to go out. This is the part that heats the food. Basically everything on the unit works and runs like normal but it wont heat. Check your owners manual for the warranty on the magnetron. They usually put a 5-7 year warranty on the part itself. If you dont have the owners manual check for it online. Hope this helps you.

Jan 24, 2010 | GE Spacemaker JVM1640SJ Microwave Oven

1 Answer

VMOC205SS quit heating, it runs but does not heat? What part do I need?


the heating components of a microwave r the diode, magnetron, and transformer. checking a unit plugged in can be dangerous seeing there is about 5000 volts from the step up transformer. if you have a amp probe you can check the amps at the wires powering the transformer. if you have less than 12 amps, and 110 volts at primary side of transformer change the magnetron and diode

May 18, 2009 | Viking VMOC205SS Microwave Oven

1 Answer

Oven part works fine, microwave runs but doesnt heat


bad micro switch in door handle, 79.95 for GE man to check,9.61 for the part and changed it myself

Apr 15, 2009 | GE Advantium SCA2000B Microwave Oven

2 Answers

Runs but won't heat


Does the turn table and interior light come on?

Nov 25, 2008 | GE JVM1870 Microwave Oven

1 Answer

Microwave does not heat


check the control panel and related circuit,and check the door lock switches ,..

Sep 27, 2007 | Roper MHE14XKB Microwave Oven

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