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Ice Forming on Air Conditioner

Pepperell Homeowner is Mystified

A homeowner in Pepperell, MA contacted us. He was baffled by a build-up of ice on his air conditioner’s outdoor unit. It may seem crazy for ice to be building up when the weather outside is 90+ degrees, however ice on your air conditioner’s unit is indicative of a common problem.

Low Refrigerant Leads to Ice Build-up

Ice on your air conditioner’s outdoor unit results from the refrigerant inside reaching a temperature that is below freezing. This can cause serious damage to the system, which should be turned off as soon as you notice the problem.

One of the most common causes of this icy build-up is low refrigerant, resulting from a leak. Air passing over the system’s coils causes condensation to form, removing the moisture from the air. In a well-functioning unit, the condensation runs into a collector pan and drains away. However, if there is not enough refrigerant it will not flow properly through the coil, resulting in ice. A trained technician can confirm the problem, identify and repair the leak.

Dirty Air Filter or Evaporator Coil May Also Be the Problem

If the air filter is too dirty, the air flowing over the evaporator coil will be restricted, which can also result in ice building up. Try changing the air filter and then turning the unit back on after the ice has melted. If no new ice forms, this was likely the problem. Regularly changing the air filter and having the evaporator coils cleaned or replaced by a professional can eliminate this problem.

Supply grills being closed.

Customers try to save energy by closing grills in unused rooms causing a decrease the airflow through the air conditioning system. Most systems are designed to have all the grills open and actually can cause the system to use more energy

A service technician was sent to the home in Pepperell. As suspected, the culprit was leaky refrigerant. The technician was able to locate and repair the source of the leak and the only ice the family is seeing now is in their freezer.

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Testimonials & Reviews

We had central air conditioning installed last year by Joyce and were very satisfied with the job. Today, John N. serviced the unit and all of the components and he was incredibly thorough and professional. He explained exactly what was serviced and what to avoid (greenery around the outdoor unit). I highly recommend Joyce Cooling & Heating!

Cristina A.

Cristina A.

Jarod was my technician on March 20th. He was professional and courteous as he completed a servicing on my Heathing Unit. He explained what he was cleaning out and system runs great again.

Matt O.

Matt O.

Mitchell P. came to our house today for an issue with our AC. He was great explaining what the problem is and how they were going to take care of it going forward. He was very pleasant and nice to work with, just like everyone at Joyce Cooling and Heating that has been here.

Cindy A.

Cindy A.

Jim and team did a top notch job on our install. The team was professional, courteous and kept the work areas super clean. I was really impressed with the level of professionalism and the knowledge of the system that was installed. They answered all the questions we had! I also really appreciate how flexible they were with our 3 dogs, they did a great job ensuring materials /parts during install kept tidy to ensure the dogs didn't get into anything. Thanks for the great work!

Jill C.

Jill C.

The representative was friendly, professional, and transparent about the work being done. The issue was resolved. My expectations were satisfied.

Stephen T.

Stephen T.

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