Question about Hotpoint RVM1425 Microwave Oven

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Will not heat product

Can I replace the magnetron myself ?

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You can but for the safety aspect I would get a qualified engineer.
If it's too expensive buy a new one, don't take the risk to save a few £/$.

Posted on Mar 21, 2008

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What may couses the microwave if you swich ON is working but not become hot the products inside?


Not sure what brand or wattage of microwave you have, but if it's turning on and, for all intents and purposes functioning the way it should, it sounds to me like there might be something wrong with the magnetron. Attached is an example picture of a magnetron from a microwave so you can find a replacement for your model.

The magnetron is what actually produces the heat in the microwave by pumping low frequency radiation into the cooking chamber to heat the food.

File Magnetron1 jpg

May 21, 2015 | Microwave Ovens

1 Answer

Microwave does not heat


please follow this steps 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.

Dec 09, 2013 | Panasonic NN-S561 Microwave Oven

1 Answer

FAULTY MAGNETRON


If there is spark please do not switch on unless you have confirmed the fault. It is possible that the Magnetron is leaking and sparking to the ground. As you have mentioned it was stored, it is 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.
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.
Now switch the microwave power on and use a cup of water 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 not check the waveguides within the cabin for food particles that can burn and spark, check for rust that can corrode and spark when the ceramic paint has worn out.
If there is heating without any issues, you can use the microwave safely

Click on replacing waveguides: http://www.espares.co.uk/advice/microwave/a/5/1146/how-to-replace-a-microwave-guide-cover.html

Jan 30, 2013 | LG MB3949G Microwave Oven

1 Answer

My Frigidaire microwave (PLMV169DCD) has recently stopped heating, but otherwise seems to work fine. I had a repair man come and look at it and said it was the magnetron. I purchased a used magnetron and...


A used magnetron is not a good idea at all to try and you can not test a diode with a digital meter. 99.9% of the time your transformer will start burning the wire windings when it fails. Also a magnetron can test good and still be bad. Without being there and looking at this myself the best advise I can give is to check the door switches, and if they are good just replace the Magnetron and Diode. You can order reasonably priced microwave replacement parts here http://allapplianceparts.com/. The mags they sell are better than most oem ones and are cheaper! You can also pick out a replacement diode from them.

Nov 13, 2010 | Frigidaire PLMV169DC Microwave Oven

1 Answer

Whirlpool Microwave no longer heating


Sounds like the magnetron has failed. It is the magnetron that generates the microwaves that heat the food. If it or the circuit that powers it fails then it stops heating. There are some high voltage circuits that feed the magnetron and you can potentially get hurt if you don't know what you are doing. Would recommend you have it serviced by a professional if you want it fixed, otherwise look for a new one since the cost of repair can come close to the price of a new microwave oven.

Jan 10, 2009 | Whirlpool MH1170XS Microwave Oven

1 Answer

Frigidaire microwave does not heat but will not shut off either.


Test 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.

Dec 22, 2008 | Frigidaire GLMV168K Microwave Oven

1 Answer

Sharp Microwave stopped heating


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.

Jul 24, 2008 | Sharp R-630D Microwave Oven

2 Answers

JVM2050 Doesn't cook food sometimes


Not the magnetron if intermittent. Probably a bad smartboard. Easy to replace if you know the basic precautions to take.

Mar 05, 2008 | GE JVM2050 Microwave Oven

3 Answers

Convection oven problem


Most of the time the magnetron is defective if the food is not heating up.
In some cases there is a defective low power transformer or other componenents associated with the magnetron.
I would suggest to check the owners manual under the warranty section. Sometimes the magnetron has 5 years warranty.
Good Luck.

Feb 15, 2008 | GE JVM1490 Convection/Microwave Oven

1 Answer

Intermittant heating


You probably have a new unit by now. The Magnetron part inside usually is the problem with this Maytag unit.I have had this unit blow the 'Magnetron' four times ! Everything else works fine. After watching the technician, I replaced it myself the other 3 times. The whole unit has to come out of the wall to do this. This High Voltage part is dangerous. The part costs about $100.00 from an online parts store. Partselect.com- or someone else.

Jan 05, 2008 | Maytag MMV5156AAS Microwave Oven

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