Magic Chef Microwave Ovens - Recent Questions, Troubleshooting & Support


The diode converts the A/C power output of the transformer to D/C, doubling the voltage to nearly 5,000 volts. This high voltage powers the magnetron to heat the food. If the diode burns out, the magnetron won't receive enough voltage to operate, preventing the microwave from heating. When the diode fails, it is often visibly burned out. Inspect the diode and if the diode is burned out, replace it. If inspecting the diode proves inconclusive, test it with a multimeter that uses a 9-volt battery or put a 9-volt battery in series with the diode. When the leads are reversed, the diode should only have continuity in one direction. (Warning: The microwave oven can store a lethal amount of electricity in its high voltage capacitor, even after the microwave oven has been unplugged. Due to the high running voltage and the potential for electric shock, it is extremely dangerous to replace the electronic components in a microwave. Only a licensed technician should replace the diode.)

Magic Chef... | Answered on May 13, 2020


It depends on the brand and model.

Normally it's a sequence like:

CLOCK > 1 > 2 > 3 > CLOCK

CLOCK > 1 > 2 > 3 > START

CLOCK > CLEAR > 1 > 2 > 3 > CLOCK

CLOCK > CLEAR > 1 > 2 > 3 > START

If not, please post a new inquiry with your correct brand and model.

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

Magic Chef... | Answered on May 11, 2020


Hello :

It's a bad door switch or loose door switch mount . There are plastic mounts inside the microwave which hold the door switches and onto which the door latches lock when you close the door.

The screws on these mounts may be loose. If they get too loose, the switches will not be activated properly .


WARNING : A microwave oven is capable of giving you a serious electrical shock, even when it is unplugged. I strongly recommend you seek the assistance of an appliance repair technician when conducting any microwave oven repair .

good luck .

please rate !
 

Magic Chef... | Answered on May 02, 2019


Pl. check mains supply and the plug of the microwave if every thing o.k check the fuse provided inside the oven,if o.k then the problem in the control panel,check the panel by replacing the same .

Magic Chef... | Answered on Mar 04, 2019

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