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Thermostat possibly?
I have a Lennox heat system. It will not come on or go off with the thermostat setting. If you set the thermostat up about 10 degrees and turn the fan to on instead of auto it will come on. Then in order for it to turn off you have to flip the breaker for the fan motor (since there is no fan off, just on and auto). It is a lennox complete heat boiler system that uses the water from the hot water heater to heat the house normally. It also has emergency heat which is what I think is coming on when I do the above. The air seems hotter than it usually is. What would cause this system to do this? Thanks.
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