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Hot water tank: both immersion heaters failing

Postby carriesummers » Tue Aug 19, 2008 9:15 pm


I have an economy 7 hot water system with 2 immersion heaters (overnight and top-up), both of which have stopped working at the same time. The light on the top-up switch is coming on, so power is reaching the switch, and none of the fuses have tripped. I also had both immersion heaters replaced less than a year ago, so they are unlikely to be corroded.

Can anyone suggest a reason why both immersions have stopped working at the same time?

Many thanks...
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