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Question About Honeywell Thermostat ST7100
two red lights on...

The mains electric was off for a few minutes and now it is back on both red lights to Ch and hot water are illuminated and wont go off . Is the control box broken and will it need rreplacing?

Asked by Mike Barrett on 10/03/2010 0  Answer

ManualsOnline posted an answer 14 years ago

The ManualsOnline team has found the manual for this product! We hope it helps solve your problem. Get the Manual Here

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