So why is my furnace blowing cold air instead of heat.
Electric furnace blowing cold air instead of heat.
If i turn the thermostat down the unit turns off.
A furnace blowing cold air could be due to your thermostat.
One of the most common causes of a furnace blowing cold air is not actually a repair at all.
Turn the knob to off and wait 3 5.
If your furnace fan is set to on the fan runs continuously whether or not your furnace is producing heat.
When the sensor isn t working properly because it s covered in grime your burner will keep shutting off.
Again using occam s razor we can assume that the next likely culprit for your heater blowing cold air is your thermostat.
If i turn the thermostat down the unit turns off.
The thermostat is set to on.
Sometimes even a furnace can get too hot.
So once a heating cycle ends and the furnace burners cut off the fan continues to blow.
If you re noticing that your furnace starts blowing cold air here and there not consistently it may be because your thermostat is set to on.
So the unit seems to be working correctly but simply no heat.
Oil tanks must have oil in them gas supply valves must be open to allow the.
Try relighting the pilot light following these steps.
And because your furnace is no longer heating the air being pushed into your home will be cold.
It s job is to remove water that.
There are incidentally some common causes for why your furnace may be blowing cold air instead of warm and what you can do to fix the problem.
Turn off your furnace turn your thermostat from heat to off.
Have an expert inspect your ducts along with the furnace.
Fuel is the heat source for every furnace and if there is no fuel being supplied the furnace will only blow cool air.
Regular maintenance a final word on your heating system.
If your furnace.
The furnace is overheated.
Ask any professional heating repair man what the first item they check when they are on a.
New high efficiency furnaces have what is known as a condensate drain.
An old or dirty flame sensor will cause your furnace to blow cold air too.
Otherwise your electric heater or gas furnace will not turn on.
The fan however may keep on rockin causing that cold air to blow.
If your furnace starts blowing warm but then quickly turns cold the flame sensor may need attention.
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.
The top three reasons why a furnace might be blowing cold air instead of warm are include.
Check if your thermostat is set to on instead of auto.