F2 error, unit may ice up or shut down unexpectedly during cooling

Safety first: Disconnect power and allow any ice on the coil to melt before working near it.

• Step 1 – Inspect evaporator sensor placement:
  • Access the evaporator coil and locate the freeze sensor clipped to the tubing or fins.
  • Ensure it is firmly attached and not hanging loose.
• Step 2 – Check for icing causes:
  • Clean the air filter and ensure adequate airflow.
  • Verify that doors and windows are closed to prevent excessive humidity load.
• Step 3 – Replace sensor if needed:
  • If the sensor is cracked, corroded, or tests open/short, replace it with a Pro Breeze Evaporator Freeze Sensor.

Persistent F2 after sensor replacement suggests a control board issue; consult a technician.