We have an Evcon furnace that we just turned on for the winter. It blows cool air and does not shut off. Last year, we had it checked out for the same reason and the repairman said it was the sensor and replaced it. The green light flashes four times, which according to the diagram means "limit cycling." I do not know what that means. Any ideas out there? I have an infant I'd like to keep warm. Thanks!
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