The warning beeper keeps going off on my old Bosch fridge-freezer, but temperature's OK. This sound is really irritating but I don't want to pay the UK £117 callout and possibly the cost of a new circuit board for what is a 20 year-old machine, when the machine is keeping temperature OK.

I have the idea of cutting off the loudspeaker but does anyone know whether this can be accessed easily behind the top panel?

The Bosch ENR is KGU32163GB.

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  • Does the door closure switch work and turn the light off? Could just be a faulty switch making the fridge think the door is open? Commented Jan 18 at 12:42

1 Answer 1


I've replaced or disabled such piezo devices on several appliances (I don't even like that noise when it's working properly). It's usually not difficult to get access to the control board. There you can desolder or cut a leg of the buzzer. There's some risk that this will cause a fault, though. Do any modifications such that they're reversible if necessary.

Note that if your buzzer is sounding falsely there's probably more going on than you imply by your question. Obviously the temperature control circuitry is having a problem, and you risk losing or freezing food if you continue use of the refrigerator without addressing the core issue.

Note also that even a seemingly modern 20 year old refrigerator likely uses much more energy than a new one would. That may make replacement more appealing.

  • 6
    +1 to “figure out if there’s something really wrong”… fridge/ freezer temperature monitors can be really cheap insurance. Commented Jan 17 at 14:34
  • 2
    Then you'd have a muffled pointless beep. :P
    – isherwood
    Commented Jan 17 at 21:15
  • 7
    Last paragraph is highly sus. Even if it were true, a 20 year old fridge will last 20+ more, while a new one is likely to get bricked the next time there's an OTA firmware upgrade pushed, or just break physically from low-quality components since they assume you'll want the latest model with a new bigger touchscreen by the time it breaks anyway. These days I would always recommend repairing older appliances vs buying newer ones; the latter have gotten so out-of-control bad. Commented Jan 17 at 22:49
  • 1
    The the point of figuring out what's wrong, a 3rd party thermometer is inexpensive and will tell you if the built-in one is accurate. Commented Jan 17 at 22:55
  • 2
    To prevent the spread of misinformation, I concur with @R.GitHub as I have repaired appliances for 40 years. Every model of frig is different, as is every family's use, every maintenance schedule, every environment's weather/climate, etc., etc. It's easy to ASSUME that the newer designs are more efficient, but there are 3 problems with this: I know of no broad studies done of various models, over many, many years. Only the mfrs. test/label their product's efficiency. A frig can be made more efficient by lightening the rotating parts--this means they will fail sooner, which wastes energy!
    – kackle123
    Commented Jan 18 at 16:13

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