Owner`s manual

51
Troubleshooting
Problems Things to Check
Fault Indicators
(continued).
ILOC: The spa is disabled in a
standby mode. This mode is
typically used to clean the spa filter.
To reset press any button.
COOL: Temperature set back. If
spa water is more than 20
o
F cooler
than the temperature set point, the
heater will automatically activate to
provide freeze protection. This is a
normal function; no corrective
action is necessary.
SN1: Open sensor (spa is deacti-
vated). The high-limit temperature
sensor is not working. This must be
repaired by a dealer or service
organization.
SN3: Open sensor (spa is deacti-
vated). The water sensor is not
working. This also must be re-
paired by a dealer or service
organization.
Pd: (Only an indicator to DS-4
systems). Battery backup. Power
has been cut off to the spa, and it is
using its battery backup to preserve
its settings (for short interruptions).
The control panel will be disabled
until power returns to the unit.
Econ: (Only an indicator to DS-2
systems). Designates that the spa is
in economy mode. The message is
flashed alternately with the current
spa temperature and COOL until
the spa water is 15
o
F cooler than
the set temperature.
Spas equipped with
DS-2 & DS-4
Power Systems
[continued]