Page 32
For HELP, call 727.573.9611
PROBLEM CAUSE
SOLUTION
Water does
Air lock
Bleed air from the system (page 28)
not flow
Closed jets
Open all jets by turning counterclockwise
ACV open
Close air control valves
Water too hot
High set
temperature
Turn down set temperature on topside
control panel
High ambient
temperature
Remove the cover
Water will not
heat
Thermostat is
set too low
Check and reset to desired temperature
Air open
Close air control valve
Dirty filter
Check and clean filter
Blown fuse
Check and replace fuse
Slide valve
closed
Check and open all valves
Cover off
Put the cover back on
Hot tub in
Economy
mode
Press the Standby button and take out of
Economy (see
Economy Mode
on pages 25-
26)
Error Codes
MESSAGE MEANING
ACTION REQUIRED
(none
)
No message on
display. Power has
been cut off to hot
tub.
The control panel is disabled until power
returns. Hot tub settings are preserved.
OHH
HH
The hot tub has
shut down from
high heat
detection. One of
the sensors
detected 118ºF
(48ºC) at the
heater.
Do not enter the water. Remove the cover
and allow the water to cool. Once cool, push
any button. If the hot tub does not reset, turn
off the GFCI and call service.
OHS
OH
The hot tub has
overheated and
shut down. One of
the sensors
detected that the
hot tub water is
110ºF (43ºC).
Do not enter the water. Remove the cover
and allow the water to cool. At 107ºF (42ºC),
the hot tub resets automatically. If the hot
tub does not reset, turn off the GFCI and call
service.
ICE
IC
Potential freeze
condition detected
(Ice)
No action required. The pump will
automatically operate regardless of the hot
tub status.
Summary of Contents for ML 736
Page 18: ...Page 16 For HELP call 727 573 9611...
Page 19: ...Page 17 For HELP call 727 573 9611 Figure 12 GS510SZ Board Diagram for All EXPORT Models...
Page 41: ...Page 39 For HELP call 727 573 9611 ML 736 Callouts...
Page 43: ...Page 41 For HELP call 727 573 9611 ML 844 Callouts...
Page 44: ...Page 42 For HELP call 727 573 9611 N o t e s...
Page 46: ...6101 45th St N St Petersburg FL 33714 727 573 9611...