Furnace Blowing Out Cold Air Heat

If your furnace seems to be blowing cold air it could be a problem with the ignition system.

Furnace blowing out cold air heat.

For a heat pump or heater to produce warm air air must flow easily through the filter. Again using occam s razor we can assume that the next likely culprit for your heater blowing cold air is your thermostat. If you only feel your furnace blowing cold air briefly and the air is quickly replaced by warm air this is the most likely explanation. If you notice your furnace only blows cold air on occasion but your home is still maintaining its temperature than this may be simply a setting on your thermostat.

1 thermostat is set to on is your furnace blowing cold air only sometimes. 7 reasons your heater blows cold air ac blows hot air 1 dead batteries in thermostat. Turn the knob to off and wait 3 5. Find the furnace s pilot light assembly and reset switch the assembly and switch should be near the bottom of.

Turn off your furnace turn your thermostat from heat to off. Have an expert inspect your ducts along with the furnace. The fan setting on your thermostat has two options on and auto. Is the furnace s blower constantly running.

Otherwise your electric heater or gas furnace will not turn on. 2 clogged air filter. Your furnace blowing cold air could be caused by hot air escaping through holes in the duct work that carries the heat throughout your building. When a heating cycle begins and your air handler turns on that cool air will blow out of your registers before warm air does.

Try relighting the pilot light following these steps. 2 furnace overheated let s say your furnace blows hot air then cold air but then stops blowing any air at all after a. Basically the furnace isn t lighting the fuel meaning it can t heat your home either. Seems silly but you d be surprised how often this has happened.

Ensure that your thermostat is set higher than the temperature in your home. 3 pilot light is out if your gas furnace is only.