AC Repair
Why Does My AC Keep Turning On and Off?
2026-08-15 5 min readBy Launch Air & Heating
Short cycling wears out your AC fast and drives up bills. Learn why it happens and how to fix it.
Understanding AC Short Cycling
Short cycling is when your AC turns on and off too frequently without completing a full cooling cycle.
Why it's a problem
It wastes energy, wears out components, and never properly dehumidifies your home.
Common causes
- Oversized AC unit
- Dirty air filter or coil
- Low refrigerant
- Thermostat placement or malfunction
- Frozen coil
The fix
Start with a clean filter. If it continues, a professional should check refrigerant, controls, and sizing.