Jacuzzi J-345 User Manual

25

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 first filled 

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).

 

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 flash 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