Goodman air conditioner short cycles (turns on and off frequently)

Safety first: Turn off power before moving thermostat wiring or opening equipment.

Steps to check:

• 1. Thermostat location: Ensure the thermostat is not directly in the path of a supply register, in direct sunlight, or near appliances that generate heat. If it is, consider relocating with the help of a professional.
• 2. Check thermostat settings: Disable any extreme energy-saver or adaptive recovery modes that may cause rapid cycling. Ensure temperature swing/differential is set to a reasonable value (e.g., 1–2°F).
• 3. Replace thermostat batteries: Weak batteries can cause erratic operation.
• 4. Inspect air filter and coil: Dirty filters or coils can cause icing and short cycling. Replace filters and have coils cleaned if needed.

When to call a professional: If short cycling continues, a technician should check refrigerant charge, system sizing, and control board operation.