
| Message | Meaning | Action Required | 
| 
 | 
 | 
 | 
| LF | Persistent low flow problems. | Follow action required for HL or HFL message. | 
| 
 | Heater is shut down, but other spa | Heating capacity of the spa will not reset | 
| 
 | functions continue to run normally. | automatically. Press any button to reset. | 
| 
 | Displays on the fifth occurrence of | 
 | 
| 
 | the HL or HFL message within 24 | 
 | 
| 
 | hours. | 
 | 
| 
 | 
 | 
 | 
| OH | Overheat protection. The spa has | DO NOT ENTER THE WATER. Remove the spa cover | 
| OHS | shut down. One of the sensors | and allow water to cool. At 107°F, the spa should | 
| 
 | has detected that the spa water is | automatically reset. If spa does not reset, shut off | 
| 
 | 110°F. | the power to the spa and call your dealer or service | 
| 
 | 
 | organization. | 
| 
 | 
 | 
 | 
| HH | Overheat protection (spa is | DO NOT ENTER THE WATER! | 
| OHH | shutdown). One sensor has | Remove the spa cover and allow spa to cool below | 
| 
 | detected 118˚F (48˚C) at the | |
| 
 | 107˚F (42˚C). Press any button on the topside | |
| 
 | heater. | |
| 
 | display to reset spa. If spa will not reset after spa has | |
| 
 | 
 | |
| 
 | 
 | cooled, turn off power for approximately 30 seconds | 
| 
 | 
 | and then turn power back on. If display message is | 
| 
 | 
 | repeated then shut the power off to the spa and call | 
| 
 | 
 | your dealer or service organization. | 
| 
 | 
 | 
 | 
| Pr | When your spa is first actuated, it | The priming mode will last for up to four minutes and | 
| 
 | will go into priming mode. | then the spa will begin to heat and maintain the water | 
| 
 | 
 | temperature in the Standard mode. | 
| 
 | 
 | 
 | 
| SF | Safety Suction. Spa is shut down. | The display will show SF when a vacuum switch | 
| 
 | 
 | closes. All functions will turn off and the system will | 
| 
 | 
 | be disabled until a panel button is pressed. | 
| 
 | 
 | 
 | 
| SL | Indicates heater is in Sleep Mode. | None. | 
| 
 | 
 | 
 | 
| SA | Spa is shut down. The sensor that | If the problem persists, contact your dealer or service | 
| Sb | is plugged into the sensor “A” or | organization. (May appear temporarily in an overheat | 
| SNA | “B” jack is not working. | situation and disappear when the heater cools.) | 
| 
 | 
 | |
| Snb | 
 | 
 | 
| 
 | 
 | 
 | 
| Sns | Sensors are out of balance. | Contact your dealer or service organization. | 
| Sn | • If this is alternating with the | 
 | 
| 
 | 
 | |
| 
 | temperature, it may just be a | 
 | 
| 
 | temporary condition. | 
 | 
| 
 | • If the display shows only this | 
 | 
| 
 | message (periodically blinking), | 
 | 
| 
 | the spa is shut down. | 
 | 
| ST | Indicates heater is in Standard | None. | 
| 
 | Mode. | 
 | 
| 
 | 
 | 
 | 
| Stby | Pressing a button combination | Press any button to leave Standby Mode and return to | 
| 
 | on the user panel has activated | normal operation. | 
| 
 | Standby Mode. | 
 | 
| 
 | 
 | 
 | 
2010 Portable Spa
19 OperatingYour
Spa
| LTR20101000, Rev. C | www.calspas.com | 
