Question about Whirlpool GM8155XJ Convection/Microwave Oven

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Whirlpool micro wave oven model GM8155xjb-o. during long cooking time of bake potatoes ,fuse blew. replaced magnetron since it had a hole on the end .turned on microwave ...fuse blew again what would be the most likely solution?

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Posted on Jan 02, 2017

heatman101
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SOURCE: changed magnetron on microwave, still no heat up

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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Posted on Sep 30, 2010

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1 Answer

Sharp R959SLMA auto cook not working


please make 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.
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Dec 16, 2013 | Sharp Microwave Ovens

1 Answer

I have an Electrolux High Speed Oven E30SO75FPS that's 3 years old and the Magnetron has failed for the 3rd time. What can be causing this?


Is the internal cooling fan working?

Are the ducts and vents clear?

Problems with any of those can result in overheating, which destroys magnetrons.

I have seen high voltage rectifier diodes interact with magnetron in funny ways. I'd replace the diode, too.

You can find links to helpful exploded view diagrams and part ordering help here.

I recommend that you bookmark that link to your favorites.

Finally, baking potatoes and making popcorn really give the magnetron a workout.

You should put about 1/2 cup of water in the rear corner of the microwave when cooking those foods.

It helps "preload" the oven to prevent execessive microwave energy reflection back to the magnetron.

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

Dec 12, 2011 | Microwave Ovens

1 Answer

Whirlpool gold GH5184XPB-4 Last used to cook potatoes. sensing then cooked. Now runs but does not cook. Any ideas? Joe


There are three reasons for this, a bad magnetron "common problem" or a high voltage diode and capacitor can be a factor. If the magnetron is at fault it is cheaper to replace the microwave oven.

Mar 10, 2011 | Whirlpool Microwave Ovens

1 Answer

SET TIMER FOR 20 MINUTES FOR BAKED POTATOE.. CAME BACK AND FOUND POTATOES CHARCOALED. SMOKE AND SINGED INSIDE. MICROWAVE WILL NOT COME ON. CHECKED CIRCUIT BREAKER. POWER TO UNIT.


That was a very long duration to have set for potatoes. It would have made the magnetron burnt by exeeding the limit and findinf there was no conductive medium by moisture , it has ended up burning the magnetron.
First of all clean up the inside and clean up the point of the magnetron beam.Now confirm on the inside to be totally dry.
Disconnect power and check inside for break of fuse to the magnetron.If the microwave does not heat on testing with a cup of water , then it is possible that the magnetron is cooked.
Confirm the cost for the unit to decide on replacement.
Hope this helps.

Aug 21, 2010 | LG LMV1630 Convection/Microwave Oven

2 Answers

Model JVM1650WH02 will shut off about 2 seconds or less into cook time. everything else works such as light and clock and sometimes the wave will cook.


magnetron is leaking internally, do not use until magnetron is replaced. the mag creates interference with the control board and resets it

Feb 05, 2010 | GE JVM1650 1000 Watts Microwave Oven

2 Answers

Fuse blows on microwave switch on


one of three things shorted could cause this: H.V. diode,capacitor,or the magnetron tube, take screw driver and short terminals on capacitor before touching anything inside the case, then chk resistance on capacitor should show infinite after needle settles, diode should show hi resistance one way and a lower resistance in the other direction(use the RX100 scale not the RX1) on both parts diode should not show very low resistance or it could be leaking,mag is a different story,it can be chk'd but in a different way

Jul 24, 2009 | Panasonic NN-H275 Microwave Oven

1 Answer

Blows internal fuses after replacing


Did you use correct fuse??? REMEMBER MICROWAVES CAN KILL EVEN WHEN UNPLUGGED
grandadfixer

Apr 30, 2008 | GE JVM1850 1000 Watts Microwave Oven

1 Answer

Micro wave does not work EM-Z2100GS


First you check the fuse at the out put of highvoltage of the transformer. If the fuse is ok, replace the magnetron.

Feb 28, 2008 | Sanyo EM-Z2100GS Microwave Oven

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