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Strange immersion heater problems, help please!
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The lower 'element' will have separate E7 and 24 hour elements within it. They CANNOT be a combined element because this risks back feeding any storage heaters on E7 only circuits during the off period via the 24 hour feed - not necessarily the case on all installations, but very possible on most.Hi, we’ve had to remove your signature. If you’re not sure why please read the forum rules or email the forum team if you’re still unsure - MSE ForumTeam0
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I think I have worked out the problem now. Switch 1 must only control the shower - that would explain the increased water flow when its active. The extra heat was illusory.
The MCB is definately broken, probably caused by a corroded top/on demand element.
Sigh. If only the previous owner had actually told me what the switches all did!0
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