Turn the system off, then check a few basics. If warm air keeps coming back, schedule a same-day diagnostic so a tech can test refrigerant levels and electrical components.
Quick checks:
- Set thermostat to Cool and Fan to Auto.
- Replace a dirty air filter.
- Make sure the outdoor unit is clear and running.
- If you see ice on lines or the coil, keep the system off to thaw.
- Open supply vents and check the breaker.
- For ductless, confirm each head is in Cool.
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Updated: 2025-12-28 00:00:00
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