Trane air conditioner short cycles, turning on and off frequently without reaching set temperature.

Safety first: Turn off power before moving or rewiring any thermostat or control components.

• Filter and airflow: Replace the air filter and ensure all vents are open to reduce temperature swings.
• Thermostat placement: Ensure the thermostat is not near supply vents, windows, or heat sources. If it is, consult a professional about relocating it.
• Thermostat settings: Enable a longer cycle rate or compressor minimum run time if your Trane thermostat supports advanced settings.

If short cycling continues, a Trane technician should evaluate system sizing, refrigerant charge, and control strategy.