Why Is My Electric Hvac Blowing Cold Air Why does the electric furnace blow cold air Troubleshooting an electric furnace blowing cold air the details The thermostat is set on ac or fan The furnace only needs a couple of minutes to warm up The thermostat is faulty The filter or the coils are dirty The heat sensor is faulty The contactor is and the coils aren t energized
A furnace blowing cold air is no reason to panic The furnace might need more time to heat up especially if it hasn t been used since last season Give it time If the air is still cold after fifteen minutes there might be a furnace issue Many issues that cause cold air to blow from the furnace can be easily resolved Related Posts Your electric furnace is blowing cold air because the filter needs to be changed the ductwork is leaking or the furnace is not getting enough electricity Additionally it could be caused by your furnace s built in thermostat not working properly Throughout this post I ll show you why your electric furnace isn t blowing
Why Is My Electric Hvac Blowing Cold Air
Why Is My Electric Hvac Blowing Cold Air
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A clogged air filter restricts airflow significantly reducing the efficiency of your furnace and possibly leading to it blowing cold air Locate the filter which is typically found in the return air duct or blower compartment Turn off the furnace before removing the filter to examine it There are several reasons why an electric furnace may be blowing cold air It could be due to the thermostat s fan setting being set to ON a dirty air filter blocking airflow an overheated heat exchanger a tripped high limit switch a duct leak a blocked condensate line or a pilot light that needs to be relit
Furnaces require a steady supply of gas to the burners to generate heat If the gas supply is insufficient the furnace will deactivate as a safety measure thus blowing out cold air To assess Fan settings Oftentimes it s the fan settings that cause your furnace to blow cold air If you have your fan set to always on it will inevitably blow cold air out when your furnace is having some downtime The solution here is to set your fan to auto so it can correlate with the furnace
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Therefore your furnace blowing cold air could result from a clogged or dirty air filter If you have a dirty or clogged furnace filter the cool air from inside your home will struggle to travel through it and into the furnace This means you have insufficient air to heat and redistribute The result is your heater blowing cold air Solution and Cost Replace the pressure switch for the cost of the part which ranges from 20 to 50 Or call an HVAC technician to confirm the diagnosis and replace the pressure switch for 115 to 200 Four Flashes Failed ignition is usually the fault of a bad igniter Most furnaces have a hot surface igniter
If your furnace always blows air sometimes hot and sometimes cold then it s likely a fan setting issue This is more common on older thermostats with a physical fan control switch These old school switches can easily be bumped by an oblivious adult or a playing child I ve seen this happen when moving furniture past a hallway thermostat The most common cause of heating issues with an electric furnace is due to the air filter When the air filter gets dirty it can block the necessary airflow to the heat exchanger Basically this leads to the furnace overheating even potentially breaking the heat exchanger Start by finding the air filter and cleaning or replacing it
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Why Is My Electric Hvac Blowing Cold Air - All My Favorite Tools https www amazon shop everydayhomerepairs This can be a frustrating issue and sometimes you don t notice the furnace is only pus