Operating instructions

27 VITA SPA DUET
Message Meaning What Happens… Possible Causes Action Required
Sn Sensors are out
of balance.
If alternating with
spa temperature,
it may just be a
temporary condi-
tion. If  ashing by
it itself, spa is shut
down*
May appear tem-
porarily in an over
heat or freeze
condition
If the problem persists,
contact your dealer or
service organization.
May appear temporar-
ily in an over heat or
freeze condition
HL A signi cant
di erence
between tem-
perature sen-
sors has been
detected. This
could indicate a
 ow problem
Heater will shut
down while spa
continues to func-
tion normally
~ Low water level
~ Dirty spa  lter(s)
~ Closed spa jets
Verify water level is
within 1/8” from top of
weir door - make sure
all jets are open, all
pumps are operating
normally and the spa
 lter(s) are clean. If
the problem persists
contact your dealer or
service organization
LF Persistent low
 ow problems.
(Displays on the
 fth occurrence
of HL mes-
sage within 24
hours) Heater is
shut down, but
other spa func-
tions continue
to run normally
Heater will shut
down while spa
continues to func-
tion normally
~ Low water level
~ Dirty spa
 lter(s)
~ Closed spa jets
Follow action required
for HL message.
Heating capability of
the spa will not reset
automatically; you
may press any button
to reset.
dr Lack of water
 owing
through the
heater
Spa is shut down
for 15 minutes
Low water Level,
poor  ow, or air
bubbles detected
in the heater.
Verify water level is
within 1/8” from top of
weir door - make sure
all jets are open, all
pumps are operat-
ing normally and the
spa  lter(s) are clean.
Spa will reset in 15
minutes, if the prob-
lem persists contact
your dealer or service
organization