Boiler Servicing Fault Finding Codes
Fault finding codes for the CI Plus range
Fault finding codes for the CI Plus range
| Codes | Description |
|---|---|
| F1 | Ignition fault |
| F2 | Fan/APS |
| F3 | Air fault |
| F4 | Ignition fault |
| F5 | Overheat Fault |
| F6 | Central heating flow thermistor |
| F7 | Domestic hot water thermistor |
| F8 | Tank thermistor (N/A For this appliance) |
| F9 | Water pressure sensor fault (please contact GW technical department for further information |
| F10 | Central return flow thermistor |
| F11 | Main board connection fault |
| F12 | Connection fault between main pcb and display pcb |
| F13 | Main pcb connection fault |
| F14 | Central heating flow temperature > 95 degrees |
| F15 | Gas valve stepper motor fault |
| F16 | Flame detection fault |
| F17 | Power supply is less than 170v |
| F18 | User interface fault |
| F19 | Central heating thermistor unplugged |
| F20 | Software incompatibility |