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Immersion heater fault

Hi any thoughts or insight into this fault much appreciated. So it's a 3kw immersion heater that's been causing the water to be scalding hot. It also blew a 15 amp rewritable fuse prior to me changing the stat earlier, anyway just had a text saying the water is still scalding and it's blown the fuse again. I'll go and have a thorough check tomorrow but I'm thinking the immerser may be on its last legs and needing completely replaced. Thanks for reading and look forward to reading any replies. 

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  • Fault from heater to earthed body of element partway along is the usual 'fuse blowing' failure mode. Perhaps if the stat is neutral switching instead of live (reverse polarity somewhere) then it would not go off even with stat.

    I suggest taking your big immersion heater spanner and a bucket with you this time....

    Mike

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  • Fault from heater to earthed body of element partway along is the usual 'fuse blowing' failure mode. Perhaps if the stat is neutral switching instead of live (reverse polarity somewhere) then it would not go off even with stat.

    I suggest taking your big immersion heater spanner and a bucket with you this time....

    Mike

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