Air Conditioning: Why Your A/C Is Freezing

Despite the high heat outside, the pipes on your air conditioner can freeze. When this happens, your air conditioning unit can experience issues that might cause it to not work properly.

The reason the pipes freeze is because the refrigerant temperature in the indoor coil is lower than the freezing point of water, and it shows when you see ice on the outside suction line. Usually, this is due to poor air flow through the evaporator coil, which is caused by dirt in either the:

1. Air Filter
2. Blower Wheel
3. Evaporator Coil
4. Ductwork

Another reason your pipes might be freezing is because of low refrigerant, but only consider this once you eliminate the four options above. 

How do you stop the pipes from freezing?

1. If it's because of low refrigerant, have your air conditioning company recharge it. 
2. If there are leaking lines, then you'll need to have those fixed. 
3. Have your air filter, blower wheel, evaporator coil and/or ductwork cleaned out. 
4. Regularly change your air filter, at least on an annual basis. 
5. You may have to have the blower replaced if it's not running at the correct speed. 

Need help figuring out your problem? Call Aitkin MN Air Conditioner repair company Northern Air Plumbing & Heating today at 218-927-6828.