Error 5201 - High pressure sensor (63HS) detects low pressure.

What does 5201 mean?

The unit's high pressure sensor (63HS) is detecting a pressure of 0.098MPa (14psi) or less during operation. This triggers an error stop and an anti-restart mode to protect the system.

• Faulty high pressure sensor (63HS)
• Pressure drop due to a refrigerant leak
• Damaged wiring (torn coating, disconnected wire) or poor connector contact for the sensor
• High pressure sensor input circuit failure on the control board

Click steps to track your progress.

1. 1

   Carefully inspect the wiring for the high pressure sensor (63HS) for any signs of torn coating, disconnections, or loose contact pins.

2. 2

   Ensure the connector for the 63HS sensor is securely attached.

3. 3

   Visually check for any signs of refrigerant leaks around the unit and its piping.

4. 4

   If no visible wiring issues or leaks are found, a qualified technician should assess the high pressure sensor itself for functionality.

5. 5

   If a refrigerant leak is suspected or detected, professional service is required to repair the leak and properly recharge the system.