| PROBLEM | PROBABLE CAUSE | REMEDY |
| System overheating, shutdown | A) Restricted filter. | Clean filter overnight with filter degreaser. |
| B) Water too low. | Raise water level above filter inlet. |
| C) Filtration time too long. (only applies on non-circ. pump set ups) | Reduce filtration time. |
| System not maintaining temp. | A) Spa is in REST mode. | Switch mode back to READY. |
| B) Spa is set to Low Range for temperature | Reset to High Range. |
| C) Restricted filter. | Clean filter overnight with filter degreaser. |
| D) Water level is too low. CAUSE | Raise water level above filter inlet. |
