Winter is just turning the nights cold here in North Texas. Our central heater (located in the attic)is doing something a little different this year. When it comes on in the middle of the night, it‚Äôs about 35 degrees-F outside. And the thermostat is set calling for heat to come on at 60 degrees. But the heater fan runs for only 2 minutes, then turns off for 2 minutes, and then back on again. This lasts for about 2 hours every night when the heater first comes on. The constant cycling on and off can not be energy efficient‚Ä¶.. and the noise keeps us awake at night.
Can you tell me why the unit is doing that? Is there an something that I can make to correct it?
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