• ** REMEMBER! **The microwave can still shock you even unplugged!!

    ALWAYS discharge the high-voltage capacitor first if you even think your hands will come close to any HIGH VOLTAGE components.

    Jeff mentions this: Anything in the high voltage ( magnetron, capacitor, diode, wires to and from ):
    ...Use a metal ( not the shiny chrome type ) screw driver with a insulated handle to short across ( touch both at the same time ) the terminals of the high voltage capacitor to discharge it.

    From Jeff's site: http://www.applianceaid.com/component-testing.php

    Jake
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HMC80251UC/01 Bosch Microwave Display Is Out

mala

Premium Member
Joined
Nov 7, 2019
Messages
15
Location
usa
Model Number
HMC80251UC/01
Brand
Bosch
Age
1-5 years
The display on my Bosch microwave went out. This is a known problem with Bosch microwaves so I purchased a new display (incl. mainboard, old one was rel 1, new one is rel 3)) from Bosch directly . I plugged that one in but the display is still out. Hence, I suspect it's not the display/mainboard. What else could cause that? There doesn't seem to be any fuse. The breaker in on.
 
I have the similar built in combo unit with a range and warming drawer.

Fuses and internal switches keep failing so display wont work. I had Bosch's repair tech out 3 times to repair but he can't determine why internal switches keep failing. My unit started failing 3 months after warranty. Bosch said they would pay for parts but not service. I send parts invoices to Bosch but never heard from them after 1 year.

After 3 service calls I'm into this unit over $800 in repairs but don't want to replace with another brand because it won't match.

BUT I found an fool proof way to fix my Bosch micro wave.

Turned off the power to the unit and took a metal saber saw and cut out all Bosch microwave internals.

Then bought a cheap $50 RCA unit from Walmart and put it inside the shell of my Bosch piece of crap microwave.

It's been over a year and the RCA unit has worked flawlessly and far out performed the Bosch junk.
 
Interesting approach. So do you open the door and then inside you have a smaller microwave including the buttons to control it? I guess that means much reduced volume and no oven anymore.

Are there actually fuses? I heard somebody saying the same but that is actually the first thing I looked on the wiring diagram. I guess I have to take it completely out and check the back.
 

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