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Posted by Tony on January 24, 2004 at 08:00:03:
I have a steam system with a programmable thermostat. 2 to 3 times a week the furnace does not kick on at the programmed 6:00am starting time so we wake up to a freezing house. If I manually turn the thermostat off, wait for ten seconds and turn it on, the furnace will start. The thermostat is new and the wiring is correct, what could be the problem?