If your furnace turns on only to turn off soon after (think just a few minutes later), you should know that this behavior, also referred to as "short cycling," can be dangerous. Furnace short cycling ...
Key Points Check thermostat settings, filters, and fuel supply first when your furnace blows cold air.Call an HVAC technician for issues like sensor failures, clogged burners, or duct leaks.Skipping ...
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