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Störungscode E03_Mini_ECOi

(ECOi-Geräte)

Error in Indoor Unit Receiving Signal from Remote Controller (central)

(When indoor unit(s) are connected)

1. Error Detection Method
It is judged an error when there is no communication from any remote controller (collectively) in a 3-minute period or if thereis no communication from the central device in a 15-minute period.

  • When there was once communication, but during use the remote control wiring is opened or miswired.
  • The line to the central control unit for indoor/outdoor operations is opened.
  • Settings are made only for sub remote controller.
  • The power to the central control unit is not on and remote controllers are not being used (or the indoor/outdoor operationsline to the central control unit is opened).
  • When remote controller are not being used, only the sub remote controller is set up.

2. Error Diagnosis 

1
Central control unit
1-1 Is the central control unit connected? Yes 1-2
No 2-1
1-2 Is the central control unit’s powered off? Yes Power on
No 1-3
1-3 Are all the Main/Sub switches on the connected central control unit set to Sub? Yes 1-4
No 1-5
1-4 Of the central control units that are connected, set only the uppermost central control unit to Main and the others to Sub. The order from top to bottom is intelligent controller → system controller → ON/OFF controller.
1-5 Is the indoor/outdoor operations line connected to the central control unit opened? Yes Correct the setting
No 2-1
2
Remote controller
2-1 Is the indoor unit under group control? Yes 2-2
No 3-1
2-2 Are the wires 1 (white) & 2 (black) to the remote control group opened, have wrong contact or grounded? Yes  Correct the setting
No 3-1
3
Indoor unit control PC board
3-1 Is the wireless remote controller and/or optional control PC board connected to on the indoor unit’s control PC board? Yes 3-2
No 3-4
3-2 Disconnect the connector mentioned above on the control PC board of the indoor unit control PC board, and see whether the E03 goes off after several minutes. (When doing so, if two remote controllers are being used and the wireless remote controller is the main remote controller, set the other remote controller as the main.) Yes 3-3
No 3-4
3-3 Replace all optional control PC board and/or wireless remote control parts including wiring.
3-4 Is there a short, miswiring, open, wrong contact or grounding in the remote control’s wiring? Yes Correct the wiring
No Replace the indoor unit control board






















































  • The ‘/’ in the table indicates the DC motor’s indoor unit board/AC motor’s indoor unit board.
  • There is no TEST pin on the AC motor’s indoor unit board.
  • Regarding the remote controller check, refer to the Reference Materials.
  • For information on the procedures for replacing the nonvolatile memory (EEPROM) of the indoor unit and/or replacing the indoor unit’s control board, refer to the manual that is packaged with the indoor unit service board.

 

 


 

 

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