FAULT CODES
None
Fault Code Reference - Model 4704452
| Status | Description | Additional Information |
|---|---|---|
| F00 | Flow temperature sensor | |
| F01 | Return temperature sensor | |
| F10 | Flow temperature sensor | |
| F11 | Return temperature sensor | |
| F13 | Warm start sensor short circuit | |
| F20 | Safety switch off - temperature limiter | |
| F22 | Safety switch off - low water pressure | |
| F23 | Safety switch off - temperature difference too great | |
| F24 | Safety switch off - temperature rise too fast | |
| F27 | Safety switch off - flame simulation | |
| F28 | Failure during startup - ignition unsuccessful | |
| F29 | Failure during operation - re ignition unsuccessful | |
| F61 | Gas valve actuation fault | |
| F62 | Gas valve switch off delay | |
| F63 | EEPROM | |
| F64 | Electronics/NTC | |
| F65 | Electronics temperature | |
| F67 | Unstable flame signal | |
| F68 | Unstable flame signal | |
| F70 | Invalid device specific number | |
| F72 | Flow/return temperature difference too great | |
| F73 | Water pressure signal too low | |
| F74 | Water pressure signal too high | |
| F75 | No pressure change detected when starting pump | |
| F76 | Not listed in maufacturer fault chart | |
| F77 | Flue non return flap/condensate pump | |
| F83 | Flow and/or return temperature change | |
| F84 | Flow/return temperature difference implausible | |
| F85 | Flow/return sensors incorrectly installed | |
| com fault | No communication with PCB |