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Thread: HBLP451LUC Bosch wall oven control panel stops working everytime there's a power surge

  1. #1
    Join Date
    May 2018
    Location
    Toronto, Canada
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    Question HBLP451LUC Bosch wall oven control panel stops working everytime there's a power surge

    Model Number: HBLP451LUC
    Brand: Bosch
    Age: Less than 1 year

    Problems with my Bosch walloven control panel/keypad:
    Repair man has been called out 4 times in less than a year, each time for the same problem (I go to use the oven and the keypad and/or control panel buttons don't respond when pressed). 1st two times they replaced the entire control panel. 2nd and 3rd times the repairmen turned off the power in the house and turned it back on and the oven worked fine.
    They told me they don't know why this happens but they suspect it's happening everytime there's a power surge or the power goes off. I was not aware of the power going off either time, but he says it could happen when there's even just a quick surge.
    I can't live with an oven where I have to reset the breaker everytime I need to use it.
    They told me, "this is a very common problem with electronic appliances these days". I've also ready on various other web sites that many makes and models have the same issue, but no one has proposed a solution. Problem is in order for me to reset the breaker I have to go through someone else's apartment and by law I have to give them 24 hour notice of entry. This is a major inconvenience and I certainly don't think I should have to live with this problem. None of the other appliances in my house have this problem and they all have electronic keypads, etc. The oven is still under warranty. And I want to know why this is happening and what the permanent solution to this is so I can force the company to fix it once and for all. I'm trying to avoid forcing the warranty company to replace the oven because they will just replace it with the same oven and I'll end up with the same problem. I want the problem resolved permanently.
    I spoke to the electrician who installed the electrical for this oven, and he came back out and tested everything and said there's nothing wrong with the electrical going to the oven.
    I'm frustrated and don't know what to do here. Does anyone have any idea why this is happening and what could be done to permanently solve the problem. I would sincerely appreciate any feedback or valuable input.

    Thx
    Mindy

  2. #2
    Join Date
    Jul 2006
    Location
    Murray, Utah 84107, United States
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    29,446

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    Quote Originally Posted by Koremins View Post
    They told me, "this is a very common problem with electronic appliances these days".
    Maybe in Canada, not in the US.

    Quote Originally Posted by Koremins View Post
    .....they will just replace it with the same oven and I'll end up with the same problem.
    Not necessarily, there might be a glitch in the control on that one.

    Quote Originally Posted by Koremins View Post
    They told me they don't know why this happens.....
    That pretty much says it all
    OWNER RICK'S APPLIANCE REPAIR
    APPLIANCE TECHNICIAN FOR 31 YEARS
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  3. #3
    Join Date
    May 2018
    Location
    Toronto, Canada
    Posts
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    Thanks for the response. But lots of youtube video's posted by americans that talk about how resetting the power can fix the control panel problems on stoves and ovens, so I don't think it's just a canadian problem...and most of our stoves and ovens come from the US.

    If there were a glitch in the control panel the problem shouldn't that have been resolved after they replaced the control panel twice?

  4. #4
    Join Date
    Jul 2006
    Location
    Murray, Utah 84107, United States
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    Removing power from any appliance only resets the checksums. It doesn't fix anything. If there is a problem with the oven control board, resetting the power is only a temporary fix. The problem will return again and after everytime the power is reset. Area power outages, power line repairs or lightning strikes can cause voltage drops or spikes. These can sometimes change setting values where the control no longer responds and resetting the circuit breaker resets everything back to 00. This is not a common problem, in fact it's extremely rare. What is common is everyone thinks their appliances work like smart phones. Whenever there's a problem with an appliance that's the first thing everyone does, power off, power on. The chances resetting the power will "fix" an appliance issue is 1 in 100.

    So, they replaced the control board and that didn't work so they came back and must have figured there was a glitch in the first one and replaced it with a second one. When that didn't work they came back and turned the power off to check the machine and when they restored power, the machine worked. Well, not really because they had to come back and do it again. If you think about it, that's all that has been done so far. They reset your power all 4 times and the problem remains. They would have got the same result even if they didn't replace the control twice.

    Bosch is not a popular brand or at least not in my area. If I can locate the tech sheet or the wiring diagram I think I can help you troubleshoot the problem. So far I haven't been able to locate any service information on that model (or one close). I'll keep looking. You'll need a DMM that can measure volts and ohms. You won't need to remove the oven from it's installation but you might need to slide it out a few inches to access the boards.

    What's the part number of the control panel part they replaced twice?
    OWNER RICK'S APPLIANCE REPAIR
    APPLIANCE TECHNICIAN FOR 31 YEARS
    REFRIGERATION SPECIALIST
    ONLINE SERV TECH: ApplianceBlog.com
    CERTIFIED TYPE 1; TYPE 2.....REFRIGERATION SERVICE E.S.

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