Gecko
| General Gecko | |
| Code | Fault |
| FLO | Open Flow/Pressure Switch |
| FLC | Closed Flow/Pressure switch |
| Err | Electronic software error |
| Prr | Failure with the temp sensor |
| HL | Failure with the Hi-Limit |
| FrE | Possible freeze condition |
| . . . (3 dots flashing) | FLO or FLC error |
| . . . (with red LED lit on PCB) | Hi-Limit sensor failure |
| 0.0 / 32F | Temp sensor failure |
| H20 | Low water level |
| BOO | Pump 1 Boost mode (P1 runs 45min high speed with oz) |
| CLE, CF | Reminder, time to clean filters |
| SbY | Standby mode (spa will shut down for an hour) |
| LOC | Touchpad is locked |
| LocP | Touchpad is partially locked |
| LocF | Touchpad is fully locked |
| Fxx, Fdxx | Filter cycle duration in hours |
| Dxx, Fdxx, Fsxx | Filter cycle delay in hours |
| Pxx | Purge cycle duration in hours |
| Exx, Edxx | Economy cycle in hours |
| Edxx, Esxx | Economy cycle delay in hours |
| Orxx (2.5-9) | Beyond normal temp limit (Over range) |
| CAL | Calibration error |