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6.  Emergency shutdown: Water temperature is above acceptable limits. 
DO NOT ENTER SPA! (spa is deactivated) A problem has been 
detected which could cause damage to the spa or its components. 
Contact your authorized dealer or service organization.
7.  Open sensor: The temperature sensor is not functional. Heater is 
disabled. This must be repaired only by a qualied authorized service 
organization or service technician.
8.  Shorted sensor: The temperature sensor is not functional. Heater is 
disabled. This must be repaired only by a qualied authorized service 
organization or service technician.
9.  Open sensor: The hi-limit temperature sensor is not functional. 
Heater is disabled. This must be repaired only by a qualied 
authorized service organization or service technician.
10.  Shorted sensor: The hi-limit temperature sensor is not functional. 
Heater is disabled. This must be repaired only by a qualied 
authorized service organization or service technician.
11.  Start-up malfunction: Flow switch is non-functional. Closed or 
shorted ow switch on system start-up (system disabled). This 
must be repaired only by an authorized dealer or qualied service 
organization.
12.  Open Flow Switch: (Heater is deactivated. The lter/circulation may 
also be deactivated). The ow switch is malfunctioning open, the 
circulation pump’s lter cartridge is excessively dirty, or an air lock 
condition has occurred at the circulation pump intake. Contact your 
authorized dealer or service organization.
13.  Closed Flow Switch: (Heater is deactivated. The lter/circulation 
may also be deactivated). The ow switch is malfunctioning closed. 
Contact your authorized dealer or service organization.
14.  Audio Communication Malfunction: Communication between the 
control panel and audio system is faulty. Shutdown power to the 
spa, wait 3 seconds and restart the spa to reset the communication. 
Contact your authorized dealer or service organization.
15.  Blinking Heater icon: This icon will blink on and off to indicate that:
  •  The temperature sensor is sensing a -20°F/6°C 
difference between the actual and set temperature or;
•  The temperature sensor is sensing a temperature above 
112°F/44°C or the hi-limit temperature sensor is sensing 
a temperature above 116°F/46°C.
WARNING: RISK OF HYPERTHERMIA (OVER-HEAT-
!