P
AGE 21
V
. SPA WILL NOT HEAT TO DESIRED
TEMPERATURE
NO
TE that the pump needs to be operating
on
L
OW SPEED
for the heater to come on. If
the pump does not operate, refer to items I
and II.
1.
Pump operates on low speed and there
are no diagnostic messages shown on
the display.
Cause:
T
emperature is set too low
Solution:
Set the temperature higher
. The spa water
temperature will rise about 2 degree F.
per hour depending on the season and if it is
indoor or outdoor. Allow enough time for the spa
to reach the desired temperature. Maximum
allowed temperature is 104F.
Cause:
Spa cover is improperly positioned.
Solution:
Y
our spa needs to be covered properly if it is to
heat properly, especially outdoors in cold climate.
Cause:
Filter car
tridge could be dirty and restricting the
water flow intermittently. The diagnostic message
"F
LO"
will appear when this happens but you
might not see it because it is intermittent.
Solution:
Remove the filter car
tridge and clean as
outlined in
"Filt
er Cartridge Removal and
Clean Up"
page 1
3. If this does not solve the
situation, call Service Center for assistance
and mention the code
"L
OW HEAT-1"
2.
Pump operates on low speed and there
is a
"F
LO"
diagnostic message:
"F
LO"
indicates a low water flow or pressure
condition resulting from an obstruction in
the plumbing. Note that the heater is
disabled for safety during that condition.
Cause:
Obstruction in the plumbing.
Solution:
a.
Remove the filter car
tridge and clean it.
See instruction on page 11 If the
condition persists, there could be an
obstruction in the impeller of the
pump. This condition could happen
if the spa is operated without a filter
cartridge. It is important to follow
the
"Filt
er Cartridge Removal and
Cleaning"
instruction of turning the
spa off when removing the filter.
Objects up to 1-1/2" in size could be
sucked through and obstruct the line
or pump impeller.
b.
Unplug the therapy module, lift it from
the spa and inspect the plumbing by
opening the unions for blocking
materials such as hair, leaves, string,
plastic bags, etc.
c.
If no blocking objects were found
and the
F
LO
message still shows,
there could be a defective or
out-of-calibration pressure switch.
Call Service Center for assistance and
mention the code
"F
LO-1"
3.
Pump low or high speeds do not
operate and there is a
"F
LO"
message.
Call Service center for assistance and
mention the code
"F
LO-2".
4.
Pump operates on low speed and there
is a
"L
S=0, LS=S, SS=0
or
S
S=S"
diagnostic message. T
his indicates a
non-functional water or High Limit
temperature sensor. Call the Service
Center for assistance and mention the
code indicated.
VI.
NO WATER FLOW AT JETS AND THE
PUMP IS OPERATING.
Cause:
Loss of prime in the module
Solution:
Prime module by following Priming Instruction on
page 10. (Check the pump unions to make sure
they are not loose.) If this does not solve the
problem, call Service Center for assistance and
mention code
"NO F
LOW-1"
