Where do restrictions come from?
(STOP AND DO THIS EASY FIX FIRST)
- Restrictions can come from several places in a heater; one of the most common restrictions is from a dirty filter. It may seem over simplified but check your air filters and if it’s dirty. If it needs to be changed, put a clean on in before you do anything else. Dirty air filters can actually reduce the airflow into the heater enough to freeze the coils and put the heater into defrost mode so you want to be sure they are changed out regularly. We recommend the 4” HEPA filters first, and then the cheap 30 day filters second and LASTLY the 1” pleated filter (booo)!
- If you have an older gas furnace, check that the pilot light hasn’t gone out.
Other Reasons Why Cold Air Is Blowing Out Of Your Vents
- Wiring or control board related. Loose wires or improper wiring can trick your heater to thinking it’s an air conditioner. A Green ID technician will be able to diagnose exactly where the problem is coming from and make the appropriate repairs.
- Low refrigerant. Heat pumps are never supposed to loose refrigerant, if your system is suddenly low on refrigerant, it likely has a leak that should be repaired. Adding more refrigerant always guarantees you’ll have another call heater or air conditioning problem down the road.
- Blower speed is set too low. Not having enough airflow over the coils can also cause a lack of heat transfer and drop the Freon temperature below freezing, which can start ice blocks to form over the refrigerant lines and coils.
What Are The Symptoms?
- Obviously having cold air blowing out of your vents
- Ice forming on your refrigerant coils
- The home is not warming up to the thermostat set point during the winter season