Problem Center · Any System
Why Is My HVAC System Short Cycling?
The heating or cooling turns on and off too frequently.
What could cause this?
- Oversized equipment
- Airflow restrictions and overheating
- Refrigerant or pressure safeties tripping
- Thermostat location, wiring or configuration
- Flame sensing problems on heating equipment
What you can safely check
- Replace a dirty filter
- Check thermostat location and settings
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
Short cycling wears equipment. If it continues, request service.
How Air Mechanical diagnoses it
We determine which safety or control is ending each cycle — and why.
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.