Firebird · A niche brand in the UK. 26 codes across 1 product family, each taken from the manufacturer’s manuals. Firebird technical support ↗
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Type the code on your display or a word from its meaning. Each code opens its own page with what it means, whether it is safe and what you can check.
26 codes
| Code | Meaning | Stops? | Homeowner check? |
|---|---|---|---|
| 3 | Transmission alarm (not outdoor unit detected) | Not stated | Yes |
| 11 | Water inlet thermistor anomaly (THMwi) | Not stated | Yes |
| 12 | Water outlet thermistor anomaly (THMwo) | Not stated | Yes |
| 13 | Indoor liquid pipe temp thermistor anomaly (THMl) | Not stated | Yes |
| 14 | Indoor gas pipe temp thermistor anomaly (THMg) | Not stated | Yes |
| 15 | Water circuit 2 thermistor anomaly (THMwo2) | Not stated | Yes |
| 16 | Water DHW thermistor anomaly (THMdhwt) | Not stated | Yes |
| 17 | Auxiliary sensor 2 thermistor anomaly (THMaux2) | Not stated | Yes |
| 18 | Auxiliary sensor 1 thermistor anomaly (THMaux1) | Not stated | Yes |
| 25 | Auxiliary sensor 3 thermistor anomaly (THMaux3) | Not stated | Yes |
| 40 | Incorrect unit controller setting | Not stated | Yes |
| 70 | Hydraulic alarm flow and water pump malfunction | Yes | Yes |
| 73 | Mixing over-temperature limit protection for mixed circuit | Not stated | Yes |
| 74 | Unit over-temperature limit protection | Yes | Yes |
| 75 | Freeze protection by cold water inlet/outlet temperature detection | Not stated | Yes |
| 76 | Freeze protection stop by indoor liquid temperature thermistor | Not stated | Yes |
| 77 | Receiver communication failure | Not stated | Yes |
| 78 | RF communication failure | Not stated | Yes |
| 79 | Unit capacity setting error | Not stated | Yes |
| 80 | Unit controller - H-LINK - RCS transmission error (if no H-LINK, RCS has no power) | Not stated | Yes |
| 81 | 'Momentary power interruption' or 'Low voltage detected' | Yes | Yes |
| 83 | Hydraulic alarm pressure | Yes | Yes |
| 157 | Inverter communication abnormality thermistor | Not stated | Yes |
| 202 | Wrong settings of controller | Not stated | Yes |
| 203 | Slave PC-ARFHE stops answering to master controller | Not stated | Yes |
| 204 | Indoor unit stops answering to master controller | Not stated | Yes |