HVAC Problem Diagnosis · Phoenix Metro
High Electric Bill From HVAC
A sudden HVAC-related increase in electricity use can come from longer run times, dirty airflow components, thermostat issues, duct leakage, refrigerant problems, aging equipment, or a system that is no longer operating efficiently.
Request HVAC Diagnosis
Tell us what the system is doing and where you are located.
Possible causes
- System running much longer than normal
- Dirty filter, coils, or restricted airflow
- Refrigerant or heat-transfer problem
- Duct leakage or poor insulation
- Aging equipment or thermostat/control issue
Safe checks before calling
- Compare usage with the same season from prior bills when possible
- Replace a dirty filter
- Verify thermostat schedules and setpoints
- Listen for unusually long run times or frequent cycling
The symptom is not always the failed part
Many HVAC failures create the same symptoms. A failed capacitor can look like a compressor problem. Low refrigerant can look like an airflow problem. A float switch can make a healthy system appear completely dead. Sapper HVAC starts with diagnosis so the repair is based on what actually failed.