Electric Hvac Heater Blowing Cold Air

Start with the simple causes before moving to the more.

Electric hvac heater blowing cold air.

A heater core is responsible for a vehicle s defrosting and heating actions. Check the pilot light on gas furnaces. The heater s blowing cold or the ac is blowing hot. Winchester 59045 btu 4 ton residential forced air electric furnace with ecm blower motor model me16cn21 18 1 439 36 1 439 36.

If your flame sensor is encrusted with residue and carbon then it will initially turn on but will quickly lower the temperature due to. Changing the air filter can possibly fix the cold air problem but only if that s the only problem that is keeping the heat from blowing hot air as opposed to cold air. Shop 8 0 results for forced air furnaces. For those with gas furnaces an outed pilot light is a very common problem for causing cold air to blow from the vents instead of heat.

1 dead batteries in thermostat. If your heater starts by throwing warm air out of your registers but you are soon left with a heater blowing cold air then i would suspect that your flame sensor needs to be cleaned. Here are just a few things that could mean. When overheating your furnace can trip a high limit switch causing the furnace burners to shut off so that the heat exchanger does not crack.

Your furnace blows hot air but that air quickly turns cold then the furnace shuts off altogether. A heater core is made up of brass or aluminum tubing that carries the hot coolant in and out along with fans that disperse the heat released by the coolant. If your car is not blowing warm air. Rather it blows the heated air created by the furnace through the system s ductwork.

If these strips malfunction the heat pump will blow cold air. A professional should repair malfunctioning circuit breakers and heating elements. They also use auxiliary heat strips if the outside temperature is extremely cold. If your oil furnace is still blowing cold air check your flame sensor.

This hot then cold air sequence happens over and over and your home isn t warming up. Seems silly but you d be surprised how often this has happened. There are many reasons an hvac heating ventilation air conditioning system might stop working. If you haven t done that yet this winter call in an hvac service expert to keep your system in top shape and prevent unexpected failures.

But all you have to work with are the symptoms. Due to their design heat pumps blow colder air than gas and electric furnaces. Heating venting cooling. Regular maintenance can prevent hvac problems like your furnace blowing cold air.

Heater cores are typically situated directly in the back of dashboards. Your furnace may be blowing cold air because the filter is too dirty. A dirty air filter blocks airflow over the furnace s heat exchanger causing it to overheat.