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2010 Portable Spa
LTR20101001, Rev. B
Operating Your Spa
www.calspas.com
14
Diagnostic Messages
Message Meaning
-- Spa temperature is unknown. After pump has been running for 2 minutes temperature will
be displayed.
HH Overheat protection (spa is shutdown) DO NOT ENTER THE WATER! One sensor has detected
118˚F (48˚C) at the heater. Remove the spa cover and allow spa to cool below 107˚F (42˚C).
Press any button on the topside 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.
OH Overheat protection (spa is shutdown) DO NOT ENTER THE WATER! If the spa has reached
110˚F (43˚C), remove the spa cover to cool the water. At 107˚F (42˚C), the spa should reset
itself. If the spa does not reset, then shut the power off to the spa, wait 30 seconds and
restore power to spa. If display message is repeated then shut the power off to the spa and
call your dealer or service organization.
IC A possible ice condition exists within the spa. No action is required, the pump will automatically
activate.
SA or Sb Spa is shut down. Spa has detected that one of the sensors is not operating properly. One
of these may display briey during overheat then disappear when overheat situation has been
resolved. Call your dealer or service organization if message does not go away.
Sn Sensor (Spa is shut down). The high limit or water temperature sensors are not working
correctly. Call your dealer or service organization.
HL A difference in readings between temperature sensors has been detected indicating a possible
water ow problem. Make sure spa is lled to proper level and that pumps are primed (water
is owing). Also check to make sure lter cartridges are clean. If message does not reset, call
your dealer or service organization.
LF This will display on the 5th occurrence of the “HL” message in 24 hours indicating a persistent
ow problem. The heater will be shut down but other functions will continue to operate.
Follow “HL” message actions then press any button to reset.
dr Insufcient water ow through the heater has been detected. Spa will be shut down for
15 minutes. Check water level and ll spa if water level is low. Make sure pumps are
primed (water is owing) and lter cartridges are clean. Press any button to reset or wait 15
minutes and spa will automatically reset. If message does not reset, call your dealer or service
organization.
dY Insufcient water level detected in heater. This will display on the 3rd occurrence of “dr”
message. Follow directions for “dr” message and press any button to reset spa. Spa will not
automatically reset when “dY” is displayed.
Sf Safety Suction System (Spa is shut down). The display will show “Sf” as soon as the vacuum
switch closes. All functions will turn off and the system will be disabled until a panel button is
pressed.
ST Indicates heater is in standard mode
Ec Indicates heater is in economy mode
SL Indicates heater is in sleep mode