(ECOi-Geräte)
(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.
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 | ||||
