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- 21 Apr 2016
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My Horstmann E7BX hot water controller is coming on at 22.30 and only goes off at 08.00 which are not the times I have for offpeak from my electricity supplier. This means I am heating hot water all night. Does the E7BX only get the time signal from the electricity meter or can it get the times from elsewhere? The electricity company is saying their meter is working correctly.