Quote:
Originally Posted by KarenandJohn
...The person who I spoke with at SECO also mentioned that sometimes the outdoor HVAC unit can freeze up which causes it to run continuously. That goes beyond my area of knowledge.
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The outdoor unit gets hot and never freezes. The indoor unit, where the cooling happens, can freeze. That happens when the system is oversized, and too much cooling is produced for the volume of air. Bigger is not better when it comes to AC. It can also happen if the indoor coils are caked in dirt or the filter is clocking a lot of air flow. If no air can get to an area, and condensate gets trapped, it can freeze. Clean everything and check the filter housing for bypass leaks and for a bad filter.