Signs Your AC Needs Service Before (or During) an Arizona Summer

Common warning signs that your air conditioner needs a professional look in the Valley heat.

Warm or weak airflow

If vents blow air that is not as cool as usual, or airflow feels weak, the cause could range from a dirty filter to a refrigerant or compressor problem. Check the filter first, then call a pro.

The system runs constantly

An AC that runs without cycling off on a moderate day may be undersized, low on refrigerant, or struggling with a dirty coil.

Ice, water, or odd smells

Ice on the refrigerant lines, water pooling near the indoor unit, or burning or musty odors are reasons to turn the system off and call for service.

Unusual noises

Grinding, squealing, banging, or loud buzzing can point to failing motors, belts, or electrical parts.

Rising power bills

A noticeable jump in cooling costs compared with the same month last year can indicate the system is losing efficiency.

Schedule before peak season

HVAC companies in the Phoenix area are often busiest in the hottest months. Scheduling a spring tune-up can help you avoid a long wait during a heat wave.

This guide is general information, not professional advice. For your situation, consult a qualified professional.