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Microwave does not turn on - Microwave Ovens

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  • mobile_guy_2 Nov 30, 2008

    I have a samsung c103fl convection microwave oven. It was working good, but suddenly it stopped working. It does not power on. What can be done to resolve this?

  • mobile_guy_2 Nov 30, 2008

    my samsung C103FL model convection microwave oven does not switch on. I have checked both the fuses as mentioned above. (You'll need to test the fuse with a Continuity tester since this fuse usually a ceramic fuse and you can't just tell by looking at it. If that's good, the problem will most likely be a mini fuse on the controller board or a fuselink that's in side the small transformer on the controller board.) Both the fuses have good connectivity. What can i do next?

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There are about as many causes of this as there are parts in the set. To Start with, Check that the microwave is not plugged into a GFCI wall socket.. If it is, make sure the socket has not been tripped. If it has reset it. Make sure the set is unplugged for the rest of this. Follow the power cord in the unit to find the primary fuse. You'll need to test the fuse with a Continuity tester since this fuse usually a ceramic fuse and you can't just tell by looking at it. If that's good, the problem will most likely be a mini fuse on the controller board or a fuselink that's in side the small transformer on the controller board. If lightning is suspect, you can pull the board out and look at the circuit side to check to burned traces. Replace any MOVs that may be on the board otherwise any corrective work is just wasted. Back to the primary fuse... If the primary fuse is blown.... Chances are that you have a bad Diode in the Tube side of the circuit. Depending on the age of the unit... it maybe a HVR-1 diode. If their are no relays on the controller board, check for a bad Triac. It could be just time to junk it.

Posted on Sep 07, 2008

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