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J-300
10.0 Operating Instructions
The spa control system has automatic functions that operate upon
start-up and normal operation to protect the system. Upon power up, the
readout displays the following information:
1. Control panel displays current software release, then;
2. Control panel displays “888” and all indicator LEDs are lit, permit-
ting visual inspection of all display segments and indicator lights for
proper operation.
3. After the initial start-up sequence ends, the actual water temperature
is displayed. If water temperature, at this time, is less than the fac-
tory default temperature setting of 100°F (38°C) the heater will turn
on and run until the water temperature rises to the factory setting,
then turn off.
Note: It is common for the heater to turn on after the spa is rst lled
because tap water is often very cold.
10.1 Setting Water Temperature
Press either the Warmer ( ) or Cooler ( ) button to
adjust the current temperature setting. The current set tem-
perature reading will blink once to indicate
that the system is ready to accept changes.
Press the Warmer or Cooler button to
adjust the temperature to a desired setting.
Once the desired temperature is reached,
do not press any buttons on the control
panel for about 5 seconds. The new tem-
perature setting will blink twice to indicate
that the change has been made.
To access the overtemp feature that allows the spa to reach 106°F
(41°C) follow the steps below (Figure 1).
WARNING: RISK OF HYPERTHERMIA (OVER-HEATING)
CAUSING SEVERE INJURY, BURNS, WELTS OR DEATH!
Water temperature in excess of 104°F (40°C) may be injurious
to your health.
!
A. Press and hold the WARMER ( ) button then;
B. Press and hold the JETS 1 ( ) button at the same time for 2
seconds. You will see the temperature change to 105°F (40°C) on
the LED display. Press the WARMER ( ) to raise the temperature
to 106°F (41°C) To lower the temperature, press the COOLER ( )
button.
C. When the overtemp has been activated, the decimal point after the
last digit will ash on and off every second as an indicator for being
in the overtemp mode.
Note: Once the temperature goes below 104°F (40°C) and you would
like to raise the temperature to 106°F (41°C) again, you will have to
repeat the steps above.
1
2
Figure 1