Observation:
d.99 shows the Status codes which give more information on the boilers current operation.
The normal operating status codes are shown in the table below:
The normal operating status codes are shown in the table below:
| CODE | Description | 30 | No demand from external controls | 00 | No heating required |
| 01 | Fan pre-run |
| 02 | Pump pre-run |
| 03 | Ignition |
| 04 | Burner on |
| 05 | Pump/Fan overrun |
| 06 | Fan overrun |
| 07 | Pump overrun |
| 08 | Anti cycling period |
