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HL A significant difference Check water level in spa. Refill if
between temperature sensors necessary if the water level is okay, make
has been detected. sure the pumps have been primed. If
This could indicate a problem persists, contact your dealer or
flow problem. service organization.
LF Persistent low flow Follow action required for “HL” message.
problems. (Display on the Turn spa off, then back to restore heating
fifth occurrence of “HL” capability.
message.) Heater is shut
down, but other spa functions
continue to run normally.
dr Possible inadequate water, Check water level in spa. Refill if
poor flow, or air bubbles necessary, if water level is okay, make sure
in the heater. Spa is shut the pumps have been primed. Press any
down for 15 minutes. button to reset, or this message will
automatically reset within15 minutes. If
problem persists, contact your
dealer or service organization.
dy Inadequate water detected Follow action required for “dr” message.
in heater. (Displays on third Spa will not automatically reset. Press any
occurrence or “dr” message) button to reset.
Spa is shut down.