Electric Hvac Heater Blowing Cold Air

Start with the simple causes before moving to the more.

Electric hvac heater blowing cold air.

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. Heater cores are typically situated directly in the back of dashboards. The heater s blowing cold or the ac is blowing hot. Seems silly but you d be surprised how often this has happened.

Check the pilot light on gas furnaces. If your oil furnace is still blowing cold air check your flame sensor. 1 dead batteries in thermostat. Your furnace blows hot air but that air quickly turns cold then the furnace shuts off altogether.

Here are just a few things that could mean. Due to their design heat pumps blow colder air than gas and electric furnaces. Many of the causes of furnace problems can be prevented with regularly scheduled cleaning and maintenance. 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.

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. If your car is not blowing warm air. This hot then cold air sequence happens over and over and your home isn t warming up.

A professional should repair malfunctioning circuit breakers and heating elements. 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 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. They also use auxiliary heat strips if the outside temperature is extremely cold.

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. 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. If your flame sensor is encrusted with residue and carbon then it will initially turn on but will quickly lower the temperature due to.

The blower motor itself does not create the heat. A heater core is responsible for a vehicle s defrosting and heating actions. Heating venting cooling. But all you have to work with are the symptoms.

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. If these strips malfunction the heat pump will blow cold air. Regular maintenance can prevent hvac problems like your furnace blowing cold air.