Derek ColeGM, Simmons One Hour Heating & Air · AI HVAC Answers

Air Filters #hvac #home #shorts

31 May 2023 · 1 min

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0:37

A short instructional clip (YouTube Short) by Derek Cole on HVAC maintenance: dirty or clogged air filters restrict airflow ('unit needs to breathe') and can cause the evaporator to frost/freeze and stop working. Low refrigerant—typically due to a leak—is another common cause; the speaker advises finding and fixing leaks, then recharging the system to the proper level. Primary recommendations: check/change return air filters to restore airflow, locate/repair refrigerant leaks, and recharge refrigerant as needed.

Chapters

We talk a lot about checking, changing your filters inside your return. The reason is because your unit needs to breathe. So when it cannot breathe, it's going to frost up, freeze up and stop from working, because now it cannot breathe. Another common aspect of the freezing unit is this low in the refrigerant. The unit itself is not just going to run low on Freon all of a sudden or use the Freon it's been using for 10 years. All of a sudden it needs £2. Obviously, something has changed. It has leaked out somewhere. We need to find that leak, stop it from happening, charge it back to the proper out, and then you'll be good to go. But the freezing is usually caused by refrigerant and by airflow.