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Samsung microwave not working

partsman01
Explorer
Explorer
So panel is lit up, but does nothing, light comes on when door is open, could it be a fuse?
5 REPLIES 5

partsman01
Explorer
Explorer
Well plugged microwave in after a week and the darn thing is working, although I haven't tried heating any water yet.

MEXICOWANDERER
Explorer
Explorer
Most microwaves these days have two, even three glass cartridge fuses on the circuit board. Take your time, look underneath the board for a hidden fuse.

Use an ohmeter to find a bad fuse. Replace that blown fuse with exactly the same part number.

The power unit of the mircrowave is fused separately from the controls circuit. The power fuse can blow and the fascia controls will just sit there and grin at you.

Fuse not blown? Check CONTINUITY of the door SAFETY SWITCH before the unit gets scrapped. Sometimes pounding on the door safety switch with your palm will get it working again.

partsman01
Explorer
Explorer
Sorry, just as I was trying to post our shop got called into a meeting, anyway, the fifth wheel has been sitting plugged in since at least last year, yes we have had lightning some times, but everything else appears fine, I have no idea if maybe it was a power surge or what, but when I went out the display was like all zeros are something like that, I meant to try and get a picture of it, anyway, unplugged it and plugged in again and as I say it lights up, light does come on when opened, but pushing the control panel does nothing, in the past I have replaced fuses on our house one, but for this to go out while sitting just seemed strange, I have left it unplugged now for over a week and was going to try plug it back in and see what happens.
But I thought I would see if anyone had an idea or maybe had something like this happen to them.
Thanks for the input.
Oh and yes I know about the capacitor is it that is high voltage, but I am not versed on it, so I am not going to try go internal as such, the most would be like my house ones, just open the cover and look at the fuse.
I am actually looking around to see what would be a good replacement for it, I figure something from Wal-mart, or Sears for example should be good, it is I believe a 1.0 cubic foot one.

Canadian_Rainbi
Explorer
Explorer
The is probably an internal fuse and yes, that could be the problem. It could also be the control board as mentioned.

NOTE: VERY HIGH VOLTAGES CAN BE PRESENT EVEN IF THE UNIT US NOT PLUGGED IN.

donn0128
Explorer II
Explorer II
Take it out and open it up and look. Sounds like a control board to me. But more info is required before anyone can make any guesses