C Display
![]() |
Boiler operating in normal running mode. Boiler will continue to run unless interrupted external controls or boiler has reached temperature. |
![]() |
Boiler operating in normal running mode. C display with a flashing burner neon indicates boiler is has reached its set temperature and will come back on when temperature falls. |
![]() |
Boiler operating in normal running mode. This indicates the boiler is in a pump overrun mode which occurs at the end of CH operation. This will last 5 minutes unless interrupted by demand for hot water. |
![]() |
Communication fault with front user display, attempt reset If fault remains - Call out engineer |
![]() |
Communication fault with front user display, attempt reset If fault remains - Call out engineer |
![]() |
Only occurs after L9 is reset. Indicates boiler is cooling down. Has to be below 50C before boiler will fire. |
![]() |
Blank Display see further information |
![]() |
Standby mode no demand for Domestic hot water or Central heating |
|







