What this usually means
Compare usage rather than bill dollars when utility rates change. Note whether runtime or indoor comfort changed at the same time.
A performance review should consider the filter, airflow, thermostat, operating temperatures, ductwork and equipment condition instead of assuming replacement is the answer.
What you can safely check
- Utility usage versus prior similar weather
- Filter condition
- Thermostat schedule
- Runtime and comfort changes
When to call a professional
Schedule evaluation when usage rises without an obvious weather or rate explanation, especially with long cycles or reduced comfort.
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