I received this microwave from my neighbor who wanted it checked by a technician.
The owner told me that there was a loud bang and since that time they set it aside (store) and were planning to buy another one since they considered the issue as beyond repair.
I took it with me to my shop and once I applied the power I noted it was powering on well, I placed a glass full of water and hit express button and after 30 seconds I checked the water and found it was still cold.
I then decided to open up the machine and do some troubleshooting.
I begin testing the H.V fuse and found its okay, next I checked the H.V diode and found it dead short.
Next I checked H.V capacitor with my multicomponent tester and found it okay as you can see the results below.
I replaced the HV diode which was found faulty and tested
again with a glass of water and after 30 seconds, I found the water was a
I decided to check the H.V diode again and found it once again
Before replacing the diode again, I decided to replace the
I replaced the two components and after testing again with a glass of water, I found the microwave was now working like new.
Thank you guys
See you in the next class