When my furnace is done heating up my home to what the thermostat calls for, the blower will shut down, then a minute or two it will kick back on for thirty seconds or so then go off again. I'm pretty sure it's the limit causing this, but what would be causing my heat exchanger to get so hot where the blower has to kick back on?
It's a newer 80% eff. furnace, new filter, everything seems clean.
Is this common?
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