I replaced the microswitches on both sides of the oven door. The procedure is very easy: - Unplug from power - Remove the top cover - there are two parts (screws are on the top) - Remove the support on the right side (the microswitch is inside this part) - by removing the two screws screws on top of the part. - Remove the two electrical wires from the switch by pulling the cable shoes. Note that the cable shoes can be snug - don't pull on the wires. - Insert the microswitch (the one with red micro button) into the new support - in an identical position. Use the old part as a reference. Note that there is a tiny latch inside that should be moved gently aside to allow the switch to get in place. - Connect the electrical wires and install the new support in place. -Repeat the procedure on the left side - note the left side has two switches - one with green micro button and the bottom one identical to the one on the right. - Make sure to install a new fuse before closing the top covers.
Microwave/Combo Oven trips breaker when you open the door
There are two small switches that the door interacts with. As they age they can fail outright or "stick" --either will trip your breaker. It is also likely that the small plastic support holding the switches starts to age and allow play or movement of the switches. I replaced both switches (after testing that one of them was bad) and both supports. About $35 to keep a 6 year old microwave going. Way better than replacing it for $1750+. It takes help to remove/replace the oven from the wall, but only a screwdriver to remove the side and top pieces to access the switches and supports YouTube videos can guide you. Thanks partselect.com for keeping me going with your Bosch parts selection!
After going to a local parts store to get the correct switch, I replaced the right door switch. The correct switch is a normally open switch. The one shipped to me was a normally closed switch. Either Bosch provided the wrong description of the part required or someone at partselect needs to check the part stocked.
Other Parts Used:
Brent from MINCO, OK
Difficulty Level:
Really Easy
Total Repair Time:
30 - 60 mins
Tools:
Screw drivers
1 of 2 peoplefound this instruction helpful.
Was this instruction helpful to you?
Thank you for voting!
The breaker in my house would stay open on microwave circuit
I watched a YouTube video that confirmed the diagnosis of failed safety switch. Order the switch and the housing as recommended (because the housing is cheap plastic and as it ages it wiggles too much and no longer holds the switch correctly). With help of my sons to get the microwave out this was an easy repair. I recommend taking the left side panel off (involves removing the left frame rail as well, but makes access SO much easier). Bottom line: no need to replace a $1700 microwave. No need to replace several appliances to go with a new brand (that was wife's idea for $4500!). Nope! $15 of parts from partselect.com (plus shipping) and we are cooking again! THANKS!
Ask our experts a question about this part and we'll get back to you as soon as possible!
4 questions answered by our experts.
< Prev
1
Next >
Sort by:
Search filter:
Clear Filter
Your search term must have 3 or more characters.
Keep searches simple. Use keywords, e.g. "leaking", "pump", "broken" or "fit".
Sorry, we couldn't find any existing answers that matched.Try using some different or simpler keywords, or submit your new question by using the "Ask a Question" button above!
Scott
February 24, 2020
Looking for the female spade with cover to connect to the door switch. Has to be high heat insulation. Need 2.
For model number HMC87152UC/01
Hello Scott,
Thank you for your question. The spades you are looking for are under part PS8770380 for the right side, and under part PS8770379 for the left. We hope this helps.
Hello Slim, thank you for reaching out. We have researched and found that the door switches for your model are not the same. The three door switches compatible with your model are part number PS8727791, PS8727790, and PS8711622, respectively. We hope this helps!
This is microwave/oven combination attached to an oven with the same power source. The oven works fine, but the microwave/oven combo is not receiving power.
For model number HMC80251UC/01
Hello Jonathan, thank you for your question. We would recommend replacing the microwave fuse first. If the fuse is black (blown) it should be replaced. Here is the replacement part, number: PartSelect Number PS10060777. I hope this helps!
Was this helpful?
Thank you for voting!
Hameed
February 3, 2023
This is microwave-oven combination with the same power source. The oven works fine, but the microwave/oven combo is not receiving power / not turn on nor display any thing
For model number HMB50152UC/01
Hello Hameed, thank you for your question. The Control Board for the Microwave is PS12071905. We hope this helps.
