Why Your AC Might Be Forming Ice in the Summertime


Phoenix metro summers are legendary for their relentless heat. But what happens when your air conditioner freezes up? This icy situation can occur for several reasons unique to Arizona’s scorching climate. Here’s why your AC might be forming ice and how to prevent these frosty meltdowns.

The Culprit: Restricted Airflow

Imagine your AC unit as a hardworking athlete. Just like any athlete needs oxygen to perform, your AC needs proper airflow to function efficiently. The most common reason for ice buildup is restricted airflow across the evaporator coils. The evaporator coil is responsible for absorbing heat from the indoor air. Restricted airflow can be caused by several factors:

• Clogged Air Filter: Arizona’s dusty climate is notorious for clogging air filters with dust, pollen, and debris. A clogged filter reduces airflow causing the evaporator coils to become excessively cold. This leads to moisture in the air freezing on the coils, creating an icy buildup.
• Dirty Ducts: Over time, dust and debris can accumulate within your air ducts. This buildup restricts airflow throughout your system, mimicking the effect of a clogged filter.
• Blocked Vents: Furniture or objects placed too close to vents can restrict airflow into the system. This results in your AC unit having to work overtime to help air circulate throughout your home.
• Malfunctioning Blower Fan: The blower fan is responsible for circulating air across the evaporator coils. A malfunctioning fan won’t provide adequate airflow, leading to potential ice formation.

Preventing the Icy Apocalypse

Here’s how to avoid these frosty situations and keep your AC running smoothly all summer long:

• Change your air filter regularly: Check and replace your air filter monthly during Arizona’s monsoon season and every two to three months during other times.
• Schedule regular AC maintenance: Twice yearly maintenance by a local qualified technician can identify potential problems like dirty coils or failing components before they cause ice buildup.
• Invest in a programmable thermostat: Program your thermostat to adjust temperatures automatically when you’re away or sleeping. This reduces unnecessary strain on your AC system.

Contact Bruce’s Today

Remember, an icy AC unit is a warning sign. Ignoring ice buildup can lead to further damage and costly repairs. The best way to ensure your AC unit keeps you cool all summer long is to call your professionals at Bruce’s Air Conditioning & Heating at 480-968-5652. Schedule your appointment today to have our technicians immediately diagnose and address any HVAC issues.