Bosch f/freezer

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Viewing 8 posts - 1 through 8 (of 8 total)
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  • January 30, 2015 at 12:57 pm #83920
    clockworkone
    Participant

    Enr Kgv3120gb/02.This is my parents f/fr. I do not do refrigeration. They tell me everything defrosted.Left for a couple of days and worked for a short while again before it defrosted.There is no excessive noise out of it. If a simple repair I would be grateful for any advice and help from refrigeration experts .Paul

    January 30, 2015 at 2:19 pm #424204
    Chris Blatch
    Participant

    Re: Bosch f/freezer

    Hi Paul,

    Have you tried the fast freeze button, this should override the temp sensor components on the PCB (for a set period)if this causes the freezer to start to freeze, then the PCB or sensors could be at fault.

    Also, if you know how,just bypass the PCB and supply the common terminal of the compressor with a live feed, if the freezer starts to frost over , then you can assume the PCB or NTC sensors are at fault. If not, then it will be a system fault.

    The PCB is obsolete and the sensors can be foamed into the case and can be impossible to replace.

    Good luck

    January 30, 2015 at 8:19 pm #424205
    Simon46
    Participant

    Re: Bosch f/freezer

    Right fridge evap sensor has got moisture in it. One butt crimp connector to short out evap sensor will make fridge freezer run perfectly. Search model no on ukw.
    Regards Simon

    January 31, 2015 at 9:03 am #424206
    clockworkone
    Participant

    Re: Bosch f/freezer

    Chris and Simon thank you. You have been very helpful. Going to visit parents next weekend so will do it then.Paul

    February 3, 2015 at 11:20 am #424207
    Chris Blatch
    Participant

    Re: Bosch f/freezer

    Simon46 wrote:Right fridge evap sensor has got moisture in it. One butt crimp connector to short out evap sensor will make fridge freezer run perfectly. Search model no on ukw.
    Regards Simon

    Simon,

    Will that cause temp issues in the freezer? As there will be no temp sensing? (BTW,it’s a genuine question, not a statement!)
    Cheers mate.

    February 3, 2015 at 12:17 pm #424208
    Simon46
    Participant

    Re: Bosch f/freezer

    No.its fridge evap sensor to be shorted. When fridge runs /calls for cooling freezer gets cold. Simples

    February 3, 2015 at 4:44 pm #424209
    Chris Blatch
    Participant

    Re: Bosch f/freezer

    I get that, but if the fridge NTC is shorted the PCB will start to run in cyclic mode, effects being either too cold or too warm in fridge room?

    February 3, 2015 at 8:22 pm #424210
    Simon46
    Participant

    Re: Bosch f/freezer

    Yes but the sensor is sensing defrost temp so can start cooling again. Faulty defrost sensor means it never starts running. short it it goes on timed defrost.

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