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I noticed a reset on it, which I’ve pressed in, although I’ve removed it now so I don’t know if it’s working again. Shouldn’t have overheated though, given that the tank was cold? Either way it looks like the thermostat wasn’t the problem, as the original is back on now

I changed the switch then waiting until half 12 when it switches to eco7. Immersion still didn’t come on! So, while the power was there I tested the wires going to and from the thermostat. There was no power coming away from it (to the element) even when I turned it right up - so I assume that...

I woke up this morning and it hadn’t heated for the second night in a row. Took the panel from the fused switch that powers it (this was still during eco 7 hours) and there was power going to the socket but not away from it. Called an electrician who says it’s most probably the switch or the...

hi, I’ve got a thermal store water heater running on two immersion heaters, one boost and one on eco7 circuit. The eco7 one seems to have started working only intermittently. Occasionally I’ll get up and find that the water is running cool when it should have been heated overnight. Usually it’s...