PLEASE SELECT THE ERROR CODE BELOW

Instructions

Tap the error code below to begin the troubleshooting process.

If you are not able to resolve your issue or if you find an error in this troubleshooting process, please click here to contact us.

E0 - EEPROM parameter error

  • Shut off your unit's power supply and turn it on after 5 seconds. Is it still displaying the error code?
    • Yes
      Is the EEPROM Chip welded on the PC Board?
      • Yes

        Replace the PC Board

      • No
        Is the EEPROM Chip firmly placed on the PC Board?
        • Yes

          Replace the indoor PC Board

        • No
          Correct the connection of the Chip to the Board. Did this fix your issue?
          • Yes

            Problem Solved

          • No

            Please Contact Support

    • No
      Is the unit working now?
      • Yes

        Problem Solved

      • No

        Please Contact Support

E1 - Indoor / outdoor units communication protection

  • Power off the unit and turn it back on after 5 seconds. Is the error still displaying?
    • Yes
      Are the wires connected as the diagram displays?
      • Yes
        Is the voltage alternating between positive and negative values?
        • Yes
          Is the wiring to the outdoor PB Board connected correctly?
          • Yes

            Replace outdoor Main PC board

          • No
            Connect the wires correctly. Is your unit working now?
            • Yes

              Problem Solved

            • No

              Go Back To Previous Step

        • No
          Is the wiring to the indoor PC Board connected correctly?
          • Yes

            Replace the indoor PC Board

          • No
            Connect the wires correctly. Is your unit working now?
            • Yes

              Problem Solved

            • No

              Replace outdoor main PC Board

      • No
        Connect the wires according to the diagram. Is the unit working now?
        • Yes

          Problem Solved

        • No

          Go Back To Previous Step

    • No
      Is your unit working now?
      • Yes

        Problem Solved

      • No

        Please contact Support

E2 - Zero-crossing signal error

  • Is your unit properly plugged in?
    • Yes

      Your PC Board is defective. Replace your indoor PC Board

    • No
      Correct the connections. Is your unit working now?
      • Yes

        Problem Solved

      • No

        Go Back a Step

E3 - Indoor fan speed has been out of control

  • Shut off the power supply and turn it back on after 5 seconds. Is your unit working now?
    • Yes

      Problem Solved

    • No
      Shut off the power supply then manually rotate the fan. Does it rotate properly?
      • Yes
        Check all of the fan motor wires. Do all of the connections look good?
        • Yes
          Do the resistance values of the indoor fan motor look normal?
          • Yes

            Replace Indoor PC Board

          • No

            Replace Indoor Fan Motor

        • No
          Correct the connections. Is your unit working now?
          • Yes

            Problem Solved

          • No

            Contact Support

      • No
        Disassemble the connection between the fan and motor. Are the bearings moving smootly?
        • Yes

          Replace the indoor fan motor

        • No

          Replace the bearings

E5 - Open or short circuit of outdoor temperature sensor

  • Are the connections between the sensor and PC Board good?
    • Yes
      Are the resistance values between Table 1 & Table 2 appear normal?
      • Yes

        Replace Indoor or Outdoor PC Board

      • No

        Replace the sensor

    • No
      Correct the connections. Is it working now?
      • Yes

        Problem Solved

      • No

        Go back a Step

E6 - Open or short circuit of room or evaporator temperature sensor

  • Are the wire connections connected properly?
    • Yes
      Are the IPM terminal resistance values uniform?
      • Yes
        Is the IPM Installed correctly?
        • Yes
          Is the outdoor fan running properly?
          • Yes
            Replace the outdoor control PC Board. Is the unit working now?
            • Yes

              Problem Solved

            • No

              Replace the Compressor

          • No
            Are the fan motors connected properly?
            • Yes

              Replace the fan motor

            • No
              Correct the connections. Is it working now?
              • Yes

                Problem Solved

              • No

                Replace the fan motor

        • No
          Correct the installation, tighten the screws and apply silicon grease. Is the unit working now?
          • Yes

            Problem Solved

          • No

            Go back 2 steps

      • No

        Replace the module PC Board

    • No
      Correct the connections. Is the unit working now?
      • Yes

        Problem Solved

      • No

        Go back 2 steps

P0 - IPM malfunction or IGBT over-strong current protection

  • Are the wires between the module PC Board and compressor connected correctly?
    • Yes
      Are the IPM terminal resistance values uniform?
      • Yes
        Is the IPM installed correctly?
        • Yes
          Is the outdoor fan installed properly?
          • Yes
            Replace the PC board. Is the unit working now?
            • Yes

              Problem Solved

            • No

              Replace the compressor

          • No
            Connect the fan motor properly. Is the fan working now?
            • Yes

              Go back 2 steps

            • No

              Replace fan motor

        • No
          Correct the the installation, tighten the screws and apply silicon grease. Is your unit working now?
          • Yes

            Problem Solved

          • No

            Go back 2 steps

      • No

        Replace the module PC Board

    • No
      Connect the cables correctly. Is your unit working now?
      • Yes

        Problem Solved

      • No

        Go back 2 steps

P1 - Over voltage or too low voltage protection

  • Is the power supply properly connected?
    • Yes
      Is the voltage between P and N around DC 320V?
      • Yes

        Replace the outdoor unit

      • No
        Correct the voltage to be between 320V. Is the unit working now?
        • Yes

          Problem Solved

        • No

          Replace the outdoor control PC Board

    • No
      Correct the connections. Is your unit working now?
      • Yes

        Problem Solved

      • No

        Go back 2 steps

P2 - Temperature protection of Compressor Top (except BIN414C2V31, BIN520C2V31)

  • Is the air flow system (indoor & outdoor) obstructed?
    • Yes
      Clear up the air inlet and outlet and/or the heat exchanger of the indoor and outdoor units. Restart unit. Is the unit working now?
      • Yes

        Problem Solved

      • No

        Go back 2 steps

    • No
      Turn off the power supply and turn it back on after 10 minutes. Is the unit starting normally?
      • Yes
        Is the Refrigerant charge volume normal?
        • Yes

          Unblock the refrigerant system such as the capillary or welded point of pipes

        • No

          Recharge the the refrigerant volume

      • No
        Check all connections including the OLP (Over Load Protector). Is everything connected correctly?
        • Yes
          Measure the resistance between the 2 ports of the OLP. Is it at zero?
          • Yes

            Replace the outdoor control PC Board

          • No

            Replace the OLP (Over Load Protector)

        • No
          Connect the connections. Is your unit working now?
          • Yes

            Problem Solved

          • No

            Go back 2 steps

P4 - Inverter compressor drive error

  • Are all of the wires between PC Board, module PC Board and compressor connected properly?
    • Yes
      Are the IPM terminal resistance values uniform?
      • Yes
        Replace the outdoor control PC Board. Is the system still displaying the error message?
        • Yes

          Replace the compressor

        • No

          Problem Solved

      • No

        Replace outdoor module PC Board

    • No
      Connect the connections. Is the unit still displaying the error?
      • Yes

        Go back 2 steps

      • No

        Problem Solved