Why is my furnace blowing cold air?
It’s extremely frustrating when your furnace seems to be blowing cold air instead of heating your home! The first thing to check is your thermostat. Make sure the fan is not set to “on” and the thermostat is currently set to “heat”. If the thermostat is set correctly, it could be your igniter or thermal coupler. Contact an HVAC professional for diagnosis and repair.
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