OWNER’S MANUAL
2021
SYMPTOM
PROBABLE CAUSE
RECOMMENDED ACTION
No message on display. Power has been cut
off to the spa.
The control panel will be disabled until power returns. Spa
settings will be preserved until next power up.
- -
Temperature unknown.
After the pump has been running for 2 minutes, the current
water temperature will be displayed.
HH
“Overheat” - The spa has shut down.* One of
the sensors has detected 118°F/47.8°C at the
heater.
DO NOT ENTER THE WATER. Remove the spa cover and
allow water to cool. Once the heater has cooled, reset by
pushing any button. If the spa does not reset, shut off the
pow-er to the spa and call your dealer for service organization
OH
“Overheat” - The spa has shut down.* One of
the sensors has detected that the spa water is
110°F/43.5°C.
DO NOT ENTER THE WATER. Remove the spa cover and
allow water to cool. At 107°F/41.7°C, the spa should
automatically reset. If spa does not reset, shut off the power
to the spa and call your dealer or service organization
SA
Spa is shut down.* The sensor that is plugged
into the Sensor “A” jack is not working.
If the problem persists, contact your dealer or service organi-
zation. (May appear temporarily in an overheat condition)
Sb
Spa is shut down.* The sensor that is plugged
into the Sensor “B” jack is not working.
If the problem persists, contact your dealer or service organi-
zation. (May appear temporarily in an overheat condition)
Sn
Sensors are out of balance. If alternating with
spa temperature, it may just be a temporary
condition. If flashing by itself, spa is shut down.
If the problem persists, contact your dealer or service
organization.
HL
A significant difference between temperature
sensors has been detected. This could
indicate a flow problem.
If the water level is normal, make sure all pumps have been
primed. If problem persists contact your dealer or service
organization.
LF
Persistent low flow problems. (Displays on the
fifth occurrence of message within 24 hours.)
Heater is shut down, but other spa functions
continue to run normally.
Follow action required for (HFL) message. Heating capability
of the spa will now reset automatically. You may press any
button to reset.
dr
Possible inadequate water, poor flow, or air
bubbles in detected in the heater. Spa is shut
down for 15 minutes.
If the water level is normal, make sure all pumps have been
primed. If problem persists contact your dealer or service
organization.
dY
Inadequate water detected in heater. (Displays
on third occurrence of message.) Spa is shut
down.*
Follow action required for (dr) message. Spa will not
automatically reset. Press any button to reset manually.
IC
“Ice” - Potential freeze condition detected.
*Even when spa is shut down, some equipment
will turn on if freeze protection is needed.
No action required. All equipment will automatically activate
regardless of spa status. The equipment stays on 4 minutes
after the sensors detect that the spa temperature has risen to
45°F/7.2°C or higher. An optional freeze sensor may be
added to protect against extraordinary freeze conditions.
Auxiliary freeze sensor protection is advisable for colder
climates. See your dealer for details.
DIAGNOSTIC MESSAGES
33
TRADITIONAL SPAS
