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Immersion heater fault

sizzler

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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    The thermostat must be faulty. The modern stats have a functional set of contacts AND a safety manually resettable thermal safety trip to stop the water boiling. The element must be shorting to earth if the 15 Amp fuse wire is blowing. Presumably there is no R.C.D. in the circuit. I would renew the element and the thermostat. Also check the earthing while you are at it.

    Z.

  • 0 in reply to Zoomup

    i just fitted a new stat today

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