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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7 Essential Furnace Maintenance Tasks to Get Done Now to Avoid Cold-Weather Problems
Pour a cup of warm water into the drain to keep the trap primed. Some people also use condensate tablets [such as the ...
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