| Type | Description | Cause | Solution |
| Er | Temperatures unsuitable for use have been reached | Temperature >45°C or <5 °C | Restore the temperature to the correct range (45>x>5°C) |
| FLO | The filtration pump is activated but the probe is not detecting wate | No water flow | Restart the controller |
| LL | The minimum level sensor is not detecting the amount of water required to activate the pumps | L1 has not detected water for more than 3 consecutive seconds | Return the water to the minimum level |
| HI | The water temperature is above 42°C | Water temperature >42°C | Water temperature ≤40°C |
| AL1 | After filling for 60 minutes (with the hot tub initially empty), the minimum level sensor (L1) is not detecting water | After 60 minutes L1=0 | Restart the controller |
| AL2 | After 60 minutes L1 has detected water but L2 has not detected water | After 60 minutes L1=1 and L2=0 | Restart the controller |
| AL1 | After draining for 60 minutes, L1 is not detecting water | After 60 minutes L1=0 | Restart the controller |
| Adr | After draining for 60 minutes, L1 is still detecting water | After 60 minutes L1=1 | Restart the controller |
