Hygena APP 6302 erratic temperature

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  • January 22, 2017 at 5:58 pm #90397
    ellosailor
    Participant

    Hi, my Hygena APP6302 (inherited but approx 12 years old) has developed a fault. The cabinet temperature has become very erratic. With the thermostat set to 5 (max) it will cool right down to -2 degC, it then switches off and stays off for ages, going up sometimes as high as 10 degC before switching on again. These are the extremes, and its usual range is +2-+8deg. I replaced the thermostat with a brand new genuine part, but the problem persists. I can’t find a defrost heater or switch, as I thought that could be the problem, the only other bit of electrics I can find is the compressor relay, and I don’t think that could be the problem?? Help!

    January 23, 2017 at 12:13 am #444649
    kwatt
    Keymaster

    Re: Hygena APP 6302 erratic temperature

    Could be the compressor overheating, cutting out then kicking back on when its cooled off.

    K.

    January 23, 2017 at 9:17 am #444650
    ellosailor
    Participant

    Re: Hygena APP 6302 erratic temperature

    Thanks for that. Doesn’t seem to be getting overly hot, but it’s certainly a possibility. If it is doing as you suggest, and it’s all well ventilated etc, which it is, then is it a sign that the compressor is failing??

    January 23, 2017 at 9:19 am #444651
    kwatt
    Keymaster

    Re: Hygena APP 6302 erratic temperature

    Yep, if that’s what it is then the compressor will fail soon enough most probably.

    K.

    January 23, 2017 at 9:37 am #444652
    electrofix
    Moderator

    Re: Hygena APP 6302 erratic temperature

    also never assume the new stat is ok. would not be the first time I got a faulty new part
    also you should be able to check if the compressor is being supplied but not starting. one tell tale is a click every now and then as the cut out pops out when the motor fails to start

    Dave

    January 23, 2017 at 11:39 am #444653
    ellosailor
    Participant

    Re: Hygena APP 6302 erratic temperature

    Thanks both, very helpful. I’ll continue the investigation……. Cheers Peter

    February 10, 2017 at 5:18 pm #444654
    ellosailor
    Participant

    Re: Hygena APP 6302 erratic temperature

    Update: Further investigation indicated that the new thermostat was faulty(!), so that went back. I’ve replaced the old one for now, but temperatures are still too high, although not such a wide variation as before for some reason. It does seem to be running for a long time now, so I’m beginning think that the compressor is getting tired, as suggested above. I understand that the insulation has a shelf life too? As it’s an old fridge by modern standards I’ve decided to scrap it and buy a new one. Shame really ‘cos it’s in excellent condition cosmetically, but fed up with messing about with it now. Beko BL21 seems to be a reasonable option for about £200 any views out there?

    February 10, 2017 at 10:11 pm #444655
    electrofix
    Moderator

    Re: Hygena APP 6302 erratic temperature

    not a bad choice and beko integrated have a 2 year guarantee

    Dave

    February 11, 2017 at 11:22 am #444656
    ellosailor
    Participant

    Re: Hygena APP 6302 erratic temperature

    Thanks for that, didn’t know. Cheers. Peter

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