Question about Microwave Ovens

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Oven appears to operate normally but doe not produce any heat what so ever.

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  • dolop1 May 08, 2008

    Cheers, might be easier and safer just to buy a new one!.

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Hi there dolop

You will have either a faulty HV power supply or more likely a faulty magnetron. This will need a service guy to have a look for you, as there are dangerous voltages inside a microwave that can kill you. If it is an old oven, it may be time for a new one. magnetrons replacements cost about 2/3 what they are worth to buy these days. Sorry this doesnt fix you problem, but i know from having fixed them for years that it is good advice. A FixYa rating would be great. If you have any questions, or you have enough knowledge of high voltage to attempt to repair it, I can talk you through that also.

regards
robotek

Posted on May 07, 2008

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1 Answer

Microwave runs but doe not heat


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  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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Here is a tip that will help you to figure out what is wrong with your Microwave Oven....

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http://www.fixya.com/support/r5508031-microwave_oven_basic_troubleshooting

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please undergo the following

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i think the information would help u if so rate me please,otherwise just give it as fixya,Thank u

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ya this is the same problem i too had...everything will seem to right but the part required for heating might be damaged internally...try changing tat...here i did the same...

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