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

Safety: Turn OFF power before moving thermostat wiring or opening panels.

• Check thermostat location: Ensure the thermostat is not directly in the path of a supply vent, in direct sunlight, or near appliances that generate heat. Relocate if necessary.
• Replace filter: Install a clean air filter to prevent coil freezing.
• Observe operation: Watch the indoor coil for signs of icing during operation. If ice forms, address airflow and have a technician check refrigerant charge.
• Adjust thermostat settings: Increase the temperature differential or cycle rate if your thermostat allows, to reduce short cycling.

Note: If the unit is significantly oversized for the space, only equipment replacement or zoning will fully resolve short cycling.