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Why is my AC unit freezing up?

This is a common question asked at Gary’s Heating and Air during the summertime. Air conditioners need proper airflow to keep the cold coil warm and without this, the coil will freeze before the condensed water can be drained away from the unit.

Many people that call think they just need to add refrigerant but there are many reasons why this could be happening.

1. Faulty thermostats

2. Drainage problems

3. Dirty filters

4. Dirty coil

5. Collapsed ductwork

6. Improper sized ductwork

7. Bad blower motor

8. Closed supply vents

9. Return grills covered by drapes, curtains or furniture

10. Refrigerant leak

Here’s something very important to remember: Running an air conditioner with frozen coils can lead to extensive damage of the compressor. This is the most expensive part of an AC unit, and it’s not a repair or replacement that you want to face.

  • Don’t settle for someone just coming out and adding refrigerant without providing a full system evaluation of your system.
  • Refrigerant is very expensive and may not be the cause. Adding more refrigerant when it isn’t needed just adds to your problems.
  • Call a certified heating and air conditioner technician to provide a Full System Evaluation so you will know exactly what is causing this.

8 Reasons to Hire Gary's Heating and Air Conditioning

  • Fixed Rightor It's Free!

    We stand by our work and guarantee you won’t be disappointed when we’re done.

  • 100% SatisfactionGuaranteed

    We’re perfectionists. We won’t leave until you’re happy with our work.

  • We Go Through ServiceExcellence Training

    We’re always learning- all techs go through rigorous training to learn their trade.

  • 0% Financing

    Life can get expensive- that’s why Gary’s offers 0% financing to help you out!

  • We Have the TechniciansSeal of Safety

    Each tech is drug tested, background checked, and professionally trained.

  • 5 Year LaborWarranty!

    We offer a 5 year labor warranty for members of Gary’s Maintenance Program.

  • Family Owned &Operated Since 1978

    We’ve been in the business for decades. Rest assured we know a thing or two about HVAC.

  • Factory AuthorizedDealers

    This means we have equipment & XCEL rebates ALL YEAR long!

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