The freezing up of an air-conditioner is not just an inconvenience. This also signifies that your AC unit has an issue that needs to be taken care of. Many of you might face the problem of your air-conditioner freezing up and you might start worrying about why it is happening. Well! There could be a multitude of answers to this question. But most often there are only a few common reasons that can cause your air conditioner to freeze up. Let’s dig deep into those reasons.

– Dirty Filter

Believe it or not but one of the most common reasons why your air conditioner is freezing up is a very dirty furnace filter. The fine dust gets sucked by the return air and clogs up your AC filter real quick. Hence, gradually the evaporator coil will start to frost up thereby causing the entire unit to freeze over. The longer you run it, the more it will freeze. Hence, it’s advised to frequently have your AC filter cleaned up or replaced and maintain the schedule.

– Closed Vents:

Another reason why your AC could be freezing up is when you have too many vents closed off. Or if you have some of your return grills closed off. Maybe you are moving around some furniture, you put a couch in front of the return, that will yield you similar results i.e you may see your air-conditioner freezing up. So, if your air conditioner is freezing up, one thing you can try doing is opening up all the vents and making sure all your return grills are opened up as well. Also, do not make the mistake of covering your returns with paper or cardboard taped on them.

– Low Outside Temperatures:

The minimum threshold temperature required for an AC unit to run is 16 degrees Celsius . If the temperature goes below that, it will cause the unit’s pressure to drop. This causes the AC to ice over. Almost all Freon-based refrigerants start to lose pressure below 16º C. This causes freezing issues. That is why it is always advised to turn off your air-conditioners during the winters.

– Leaking Refrigerants

If your AC starts leaking the refrigerant, it will again cause a drop in pressure thereby resulting in the icing over of the unit. Hence, you are always advised to periodically have the leakage checked and repaired if you witness your air-conditioner is freezing up. Since the refrigerants used in the AC systems are harmful chemicals, you must call a professional to fix the unit and not do it by yourself.

Fully frozen AC units can prove to be catastrophic. Hence, do not wait for long and call a technician as soon as you witness your air-conditioner has started to freeze up. You can be sure that Capital Plumbing will be able to help you.