Microwave spontaneously turned on by its LED display
blog.stuffedcow.net
Microwave spontaneously turned on by its LED display
1–10 of 119 posts
Re: Microwave spontaneously turned on by its LED display
#2Unreadable on mobile. :(
Re: Microwave spontaneously turned on by its LED display
#3> Microwave Oven Failure: Spontaneously turned on by its LED display
It is an engineering failure. The oven is not to blame. /s
Re: Microwave spontaneously turned on by its LED display
#4Link seems dead. wayback version:
https://web.archive.org/web/20240910031602/https://blog.stuf...
Re: Microwave spontaneously turned on by its LED display
#5Notice that door switch middle is a crowbar[1] which is there to prevent the magnetron from powering on when all else fails (and there is a lot of interlocking). My friends parents had a microwave that kept dying so I opened it up and realized one of the three switches was a crowbar and it blew the fuse. I changed the fuse and it powered on again and ran for a few more days until it blew again. They decided it was unsafe and canned it.
Re: Microwave spontaneously turned on by its LED display
#6We recently got rid of a four year old microwave where the magnetron turned on spontaneously and silently when the door was closed, runaway heating the box. Control panel, lights, turntable, fan, everything is idle.
Manufacturer didn't consider this an interesting defect and refused to swap out-of-warranty. The lack of give-a-shit in appliances is becoming apparent.
Re: Microwave spontaneously turned on by its LED display
#7We recently got rid of a four year old microwave where the magnetron turned on spontaneously and silently when the door was closed, runaway heating the box. Control panel, lights, turntable, fan, everything is idle. Manufacturer didn't consider this an interesting defect and refused to swap out-of-warranty. The lack of give-a-shit in appliances is becoming apparent.
That sounds dangerous, and deserving of a name & shame.
Or a YouTube video with a pack of microwave popcorn that spontaneously pops and burns and smokes.
Re: Microwave spontaneously turned on by its LED display
#8We recently got rid of a four year old microwave where the magnetron turned on spontaneously and silently when the door was closed, runaway heating the box. Control panel, lights, turntable, fan, everything is idle. Manufacturer didn't consider this an interesting defect and refused to swap out-of-warranty. The lack of give-a-shit in appliances is becoming apparent.
What was the model? I recently encountered something similar with a GE over-the-counter microwave. One day it stayed on after opening the door. I replaced the control module and the board in it looks exactly like the one in the OP photo (Midea with all of the same components), which leads me to think the fault is the same as the one described in the post.
Re: Microwave spontaneously turned on by its LED display
#9We recently got rid of a four year old microwave where the magnetron turned on spontaneously and silently when the door was closed, runaway heating the box. Control panel, lights, turntable, fan, everything is idle. Manufacturer didn't consider this an interesting defect and refused to swap out-of-warranty. The lack of give-a-shit in appliances is becoming apparent.
What was the model? I recently encountered something similar with a GE over-the-counter microwave. One day it stayed on after opening the door. I replaced the control module and the board in it looks exactly like the one in the OP photo (Midea with all of the same components), which leads me to think the fault is the same as the one described in the post.
Yep, the GE over-the-range model PNM9196SF3SS. GE is just a Haier badge since 2016. I'm not surprised by a Chinese company not giving a shit, but for a microwave magnetron to fire on its own feels like a sign of deep engineering rot.
The only fix was to unplug it then swap the logic board. Once it happened again with the new board we threw it out.
Re: Microwave spontaneously turned on by its LED display
#10I migrated our house to a "commercial" variant of the microwave oven [1] as I was tired of all the over-engineering and annoying patterns in modern microwaves.
This microwave has exactly UI element other than the door - a digital dial that goes from 10s-6m. No start/cancel, no power level, no defrost, no program mode. I don't "cook" using the oven, only reheat or very rarely heat/boil small quantities of water.
The microwave beeps only once after complete and it's not incredibly loud.
Despite my kids literally abusing this device, it's been rock solid for 7+ years. Amusingly my company started putting these same exact models in our office break/kitchen areas a couple years after I bought mine.