E15 error; unit may not recognize or control the condenser fan, leading to overheating.

Safety first: Disconnect power before working near the condenser fan and compressor.

• Step 1 – Access condenser fan: Remove the rear or bottom panel to expose the condenser fan assembly.
• Step 2 – Inspect fan: Check for debris, insulation, or wiring obstructing the blades. Remove any obstructions.
• Step 3 – Spin test: Rotate the fan blades by hand. They should spin freely. If stiff or seized, the motor is likely bad.
• Step 4 – Electrical test: With power briefly applied (if safe), verify the fan starts and runs. If not, and proper voltage is present, replace the fan motor.
• Step 5 – Check wiring and connector: Ensure the fan connector is fully seated at both the fan and control board ends.
• Step 6 – Replace control board if needed: If the fan and wiring are good but the board does not supply power, replace the main control board.