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Page 12 2008 Portable Spa Owner’s Manual
LTR20081000, Rev. B
Operating Your Spa
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.