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Combination microwave oven

I have a combination microwave oven. The grill and oven are fine, but the microwave function has stopped working

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What is the nature of the failure?

Can you enter cooking the time?

If so, what happens when you press Start?

Does it run (count down, lights on, turntable on ) but not heat?

Brand and model might help, too, but the basics are the same, so we're happy to help you with more information.

Posted on Nov 26, 2007


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Test the high voltage capacitor, the rectifier diode.or the magnetron.

The diode and capacitors can br tested. The capacitor must be allowed discharge before testing, or you risk to get electrocuted, even if power is off. Capacitors can get discharged by shorting their two contacts.
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.

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Smeg fmc24x oven and grill work turntable and microwave dont

I have a simular model and I found that the circuit board has three black relays, one for the grill one for the convection and one for the microwave. I found that the microwave one wasnt working so by swaping the microwave one with the convection one I got it to work and then replaced the faulty one with a new one at a later date.

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Bad power diode, bad power capacitor or bad magnetron

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DeLonghi combined microwave/grill/oven.

Found this posted in GE instead of DeLonghi but the basics are the same.

You say it stopped working - you mean it runs but doesn't heat?

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