General Assist Technical Reference
V2 Error History Mode
Viewing and clearing stored outdoor-unit error history
When an abnormality occurs, the V2 system stores the history of error codes. Up to 10 error records can be memorised and displayed on the outdoor unit's 7-segment LED display. This function is useful for reviewing faults that occurred previously.
Important: The error history can be cleared by setting F3-30.
Error History Mode flow
| Step | Mode | Action |
|---|---|---|
| 1 | Mode Selection Display | Change to Error History Mode. |
| 2 | Select Error History Number | Choose the required record from 00 to 09. |
| 3 | Display Error History Detail | Display the stored 3-digit error code. |
| 4 | Monitor Mode | Exit Error History Mode and return to normal monitoring. |
1. Change to Error History Mode
From the Mode Selection Display, select F3 and short-press the ENTER button.
| Initial display | The newest Error History Number and its Error Code are displayed by the two display groups. |
| Newest history position | Error History Number: 00 |
| Example shown in manual | Error Code: E71 |
2. Select the Error History Number
Use the SELECT button to move through the stored history records.
00 → 01 → 02 → … → 09
Newest Oldest
The Error History Number changes sequentially from 00 to 09 using the SELECT button. Use short presses to move through the records.
3. Check the Error History detail
Once the required Error History Number is selected, short-press the ENTER button to display the detailed error code.
| Display | Meaning |
|---|---|
| Error History Number | The selected history position, for example 01. |
| Error Code | The detailed fault is shown as a 3-digit code, for example E711. |
| No error stored | If there is no Error History for the selected number, the detail display shows dashes as illustrated in the service manual. |
To check another record, use the SELECT button to move to the next Error History Number, then short-press ENTER again to view its detail.
4. End Error History Mode
From the Error History Number display, short-press the MODE / EXIT button to return to Monitor Mode.
7-segment LED indication
| Indication | Meaning |
|---|---|
| Light off | Segment is not illuminated. |
| Flashing | Segment flashes on and off. |
| Lighting | Segment remains illuminated. |
Service note: Record the Error History Number and full 3-digit Error Code before clearing the history. Clearing the history removes useful diagnostic information about previous abnormalities.