Arizona’s intense summer heat and lack of humidity can cause residential AC systems to work overtime to keep up. It’s common for systems to operate under intense stress, fall behind, or stop working entirely. Understanding the most common reasons for AC failures can help you troubleshoot or recognize the warning signs that you need emergency AC repair in Tucson, AZ. B & J Refrigeration offers 24/7 emergency cooling and heating repairs, and our experienced technicians are available when you need us most. Our goal is to make sure your home stays cool and comfortable all summer long. Here are some of the most common cooling system failures we see during Arizona heatwaves, and what you can do about them.
Clogged Air Filters
The most common reason for AC repair in Arizona is clogged air filters. Dust, pet dander, and other debris can clog up the filters rapidly when they are operating continuously. This reduces air flow, causing the system to draw more electricity and run for longer periods. Eventually this could overwork the compressor or cause it to blow out.
Frozen Evaporator Coils
Dirty air filters and low refrigerant can cause the indoor coil to drop to a below-freezing temperature. Ice will form along the coil and create a barrier that blocks proper heat exchange. The AC will start blowing warm air.
Dirty Condenser Coils
The outdoor condenser unit expels heat into the outside air. When the coils are covered with overgrown plants or weeds, dirt, or debris, the heat will not dissipate properly. This can cause your system to run inefficiently or may make it overheat.
Refrigerant Leaks
AC units are under more intense wear and tear in Arizona due to heavy use in the summer and exposure to extreme heat, sun, and dust. This can cause parts to degrade faster, resulting in cracks and leaks. Refrigerant leaks may not be obvious in the spring but will become a major issue in the summer. Low refrigerant levels reduce the ability of your AC to cool properly, and will trigger a full system shutdown.
What to Do if You’re Having AC Trouble
You can reduce strain on your AC during the summer by keeping up with preventive HVAC maintenance, regularly changing air filters, keeping the condenser unit and coils clear, using a smart or programmable thermostat, keeping indoor vents and returns clear, and using supplemental circulation like fans. If you notice signs your AC isn’t working as efficiently, you can perform some simple troubleshooting before calling us:
- Check your electrical panel for tripped breakers
- Inspect the air filter and replace it if it is dirty or clogged
- Examine the coils for ice
- Remove debris from the outdoor condenser unit or coils
Call B & J Refrigeration if Your HVAC’s Not Cooling in Arizona
B & J Refrigeration offers rapid service calls when air conditioning units break down during intense, triple-digit heat. Our dependable, knowledgeable technicians work quickly to accurately diagnose the issue and offer solutions that return your home to a safe, comfortable environment. We have been serving the Tucson and Southern Arizona communities since 1970, offering quality, fast residential and commercial cooling and heating services. Call us now at (520) 308-6722 or contact us online to make an appointment if your HVAC’s not cooling in Arizona.