Problem Center · Any System
Why Does My HVAC System Keep Shutting Off?
Heating or cooling stops before the house reaches temperature.
What could cause this?
- Safety switches tripping — limits, pressure or condensate
- Overheating from airflow problems
- Electrical or control faults
- Thermostat power problems
What you can safely check
- Check the filter
- Check for water in drain pans
- Note any error codes or blinking lights you can see without removing panels
Don't open electrical panels or equipment cabinets, handle refrigerant, work on gas or combustion components, or bypass safety controls.
When it requires a professional
Safeties shut systems down for a reason. If it repeats, request service.
How Air Mechanical diagnoses it
We find which safety is acting and the underlying reason.
Every diagnosis starts with the system as it actually exists — equipment, controls, wiring and installation. The equipment has a brand. The problem has a solution.