Ramtons Microwave Oven Model RM206 “No Heating Problem” Now Repaired
I received this microwave in my shop with “no heating symptoms”. This problem is usually caused by failure of one or more components on the high voltage circuit.
See the components labelled below.
If any of the components labelled fail, Microwave will have “no heating symptoms”
I found the HV diode was shorted, I replaced the diode with the same specs. applied the power and found the heating problem now solved.
Repairing Microwave oven is easy if you understand how they works. But be sure to understand the safety precautions before working on electrical appliances.
You can become an expert on microwave oven by reading my latest book on “microwave oven repair made easy” here.
Humphrey Kimathi is from Nairobi Kenya and the author of:
1) Lcd-Led Television Repair Guide
2) LCD-LED Television Repair Cases/Tips Volume 02
3) Microwave Oven Repair Made Easy
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Note: You may check out his previous post on Von HotPoint Microwave Oven Came In With “No Heating” Problem Now Repaired
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Waleed Rishmawi
April 27, 2024 at 4:41 pm
Love this kind of repairs ,simple and quick.. thanks for sharing. Have a blessed day
Yogesh Panchal
April 27, 2024 at 6:07 pm
Good Job! Sir
Parasuraman S
April 27, 2024 at 9:36 pm
Very good job, solved professionally! Many thanks for sharing!
Albert van Bemmelen
April 27, 2024 at 10:57 pm
A good HV diode acts in the Microwave oven as a cap charger and HV voltage doubler. Normally there also is a HV safety fuse that protects the 4KV HV circuit from flowing too high currents. But now the 2KV HV cap probably only got a constantly at 50Hz changing 2KV AC voltage on its poles without losing or charging any energy and without blowing the HV safety fuse. And the necessary 4KV was never generated to activate the Microwave HV tube either.
Babu M S
April 27, 2024 at 11:59 pm
Good fix and shown with neat photos of the component.Thank you very much for sharing.
Imoudu.O
April 29, 2024 at 4:22 am
Ah bro,good to hear from you again on this blog,well done and have a nice day.