The ideal schedule for cleaning or replacing your air filter depends on multiple factors, like the filter design and MERV rating as well as the current indoor air quality. For conventional 1”-3” filters, most brands recommend replacement every 30-90 days. Pets, health conditions and even nearby pollution sources can encourage replacing the filter more often.

It is recommended to service your HVAC system twice a year: once before the summer heat sets in and again before the colder winter temperatures arrive.

When selecting an HVAC repair company, verify that they have a valid contractor’s license and bond insurance as required by the Arizona Registrar of Contractors. Most HVAC replacements or new installations also require a permit.

In Arizona's dry and hot climate, you might encounter common HVAC problems such as faulty wiring, worn or loose components, compressor leaks, failing motors, low coolant levels, clogged air filters, and excessive system pressure.