Overheating immersion
In article , Huge
writes A couple of months ago, the immersion heater overheated and melted both the insulation and its plastic cap... So I assumed the thermostat was faulty, bought and fitted a new one and fabricated a new cap from plastic drainpipe. The new thermostat has an overtemperature trip, which keeps tripping. So, whatever's wrong is still wrong. I carefully remade all the joints when I replaced the thermostat (I assumed that's what the problem was), so I imagine it can't be that. Could the element be furred up? We have very hard water and our water softener packed up years ago.... Why ever not change the whole thing?. They aren't expensive and chances are that if its been that hot, its not done the element a power of good as they don't last that long and the improvised cover, sounds well improvised;). Bet that theres a partial short from live to earth in the heating element, so part of the heater is going much hotter than it should. Shorts in immersion heaters are a regular source of RCD trips..... -- Tony Sayer |
"Huge" wrote in message ... A couple of months ago, the immersion heater overheated and melted both the insulation and its plastic cap... So I assumed the thermostat was faulty, bought and fitted a new one and fabricated a new cap from plastic drainpipe. The new thermostat has an overtemperature trip, which keeps tripping. So, whatever's wrong is still wrong. I carefully remade all the joints when I replaced the thermostat (I assumed that's what the problem was), so I imagine it can't be that. Could the element be furred up? We have very hard water and our water softener packed up years ago.... -- "The road to Paradise is through Intercourse." [email me at huge [at] huge [dot] org [dot] uk] The element could well be furred up, and if it is at the bottom of the cylinder there could be a few buckets of scale wating to be shifted!! Try here http://www.ewh.co.uk/ |
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