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Störungscode E15_Mini_ECOi

(ECOi-Geräte)

Auto-Address Alarm (not enough units)

(When indoor unit(s) are connected)

1. Error Detection Method

It is judged an error not enough indoor units reply to communications and this is determined from the number of indoor units specified with the outdoor unit. (This is detected even when auto address setting is not used.)

  • The actual number of indoor units is fewer than that specified at the outdoor unit.
  • Some indoor unit(s) are connected but power is not turned on.
  • The CHK pin and/or TEST pin of the indoor unit was shorted when its power was turned on.
  • High voltage was applied (over AC200V) in the indoor/outdoor operations line circuit.

2. Error Diagnosis

1
Power Source
1-1 Is the indoor unit powered off? Yes Power on
No 2-1
2
Indoor/ outdoor control line 
2-1 Is the indoor/outdoor control line opened or shorted? Yes Correct the wiring
No 2-2 
2-2 Was a high voltage (over AC200V) applied in the indoor/outdoor operations line circuit? Yes 3-2
No 3-1
3
No. of Indoor Units
3-1 Was the number of indoor units changed after auto address setting finished? Or was the setting for the number of indoor units changed on the control PC board of the outdoor unit? Yes 3-2
No 4-1
3-2 Conduct checks prior to auto address setting.
4
Indoor unit control PC board       
4-1 Are the CHK pin and/or TEST pin on the indoor unit control board short-circuited? Yes Remove the short
No 4-2
4-2 Is the wireless remote controller and/or optional control PC board connected to on the indoor unit´s control PC board? Yes 4-3 
No 4-5
4-3 Disconnect the connector mentioned above on the control PC board of the indoor unit control PC board and see whether the E15 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 4-4
No 4-5
4-4 Replace all optional control PC board or wireless remote control parts including wiring.
4-5 Is the LED blinking on the indoor unit´s control PC board? Yes 4-6
No 5-1 
4-6 The nonvolatile memory (EEPROM) on the indoor unit´s control board is either not installed, improperly installed or the nonvolatile memory is faulty. Correct this or after replacing the nonvolatile memory, write model data to it in the remote control detailed settings mode.
5
Outdoor unit control PC board
5-1 Set the number of the indoor unit setting at No.10 on the outdoor unit´s control PC board. And compare the status of the indoor unit´s connection setting at No.9 (indoor unit check). Then, make a detailed examination of any absent indoor units.

 

  • 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 model´s indoor unit board.
  • For information on the procedures for replacing the nonvolatile memory (EEPROM) of the indoor unit, refer to the manual that is packaged with the indoor unit service board.
  • For information on the remote control´s detailed settings, refer to the Reference Materials.

 

 


 

 

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