Jacuzzi LCD Series Operating instructions

STANDARD TROUBLESHOOTING APPROACH
S.T.A. MANUAL 2014+
LED SERIES
www.guillens.com - [phone]
Guillen's Enterprises, inc
jacuzziparts.com
800-222-7855

The following symbol is placed throughout this manual for your protection. Always use extreme cau-
tion whenever performing repairs to electrical control system components of any kind!
DANGER: Electrical Shock Hazard Exists!
High Voltage Present on Circuit Board. Use
Extreme Caution while Servicing Circuit Board.

Table of Contents
1.0 Standard Troubleshooting Approach (S.T.A.).......................................................................... 1
1.1 Why a Standard Troubleshooting Approach? ..............................................................................................................1
1.2 How to Use the S.T.A...................................................................................................................................................1
1.3 Professional Customer Service ...................................................................................................................................1
1.4 Before Leaving the Shop .............................................................................................................................................1
1.5 Fixing the Hot Tub........................................................................................................................................................1
1.6 Before Calling Technical Support.................................................................................................................................1
1.7 Before Leaving the Customer......................................................................................................................................1
1.8 Satisfying the Customer...............................................................................................................................................2
2.0 Electro Static Discharge (E.S.D.) .............................................................................................. 3
2.1 E.S.D. - What is it? What does it do? ..........................................................................................................................3
2.2 Avoiding E.S.D. Damage.............................................................................................................................................3
2.3 What About Wrist Straps and Special Mats? ...............................................................................................................3
2.4 Must Wrist Straps and Mats be Used When Replacing A Circuit Board? ....................................................................3
3.0 Main Control Panel Functions................................................................................................... 4
3.1 J-300 Control Panel (2014+) .......................................................................................................................................4
4.0 Control Panel Functions............................................................................................................ 5
4.1 Setting Water Temperature .........................................................................................................................................5
4.2 Activate Jet Pumps......................................................................................................................................................5
4.3 Light On/Off Button......................................................................................................................................................5
4.4 Light Mode Button........................................................................................................................................................5
4.5 Jets ..............................................................................................................................................................................6
4.6 Selecting Desired Massage Action ..............................................................................................................................6
4.7 Waterfall Feature .........................................................................................................................................................6
4.8 Air Controls..................................................................................................................................................................6
5.0 Standard Programming Functions ........................................................................................... 7
5.1 Menu Programs Button................................................................................................................................................7
5.2 Primary Filtration Program...........................................................................................................................................8
5.3 Change Filter Timer Program ......................................................................................................................................9
5.4 Secondary Filtration Program......................................................................................................................................9
5.5 CLEARRAY Program.................................................................................................................................................10
5.6 Economy Mode..........................................................................................................................................................10
5.7 Lock Mode ................................................................................................................................................................. 11
5.8 Top Menu Lock .......................................................................................................................................................... 11
6.0 Understanding Circuit Board Pin Assignments .................................................................... 12
6.1 Circuit Board Jumpers (All North American 60Hz 2-Pump Models) ..........................................................................12
6.2 Circuit Board Jumpers (All Export 50 Hz 2-Pump Models)........................................................................................12
6.3 Circuit Board Jumpers (All North American 60 Hz 1-Pump Models) .........................................................................12
6.4 Circuit Board Jumpers (All Export 50 Hz 1-Pump Models)..................................................................................13
7.0 Troubleshooting Using The Control Panel............................................................................. 14
7.1 Control Panel Displays ..............................................................................................................................................14
7.2 Control Panel Default Display....................................................................................................................................14
7.3 Control Panel Status and Error Messages ................................................................................................................14
7.4 Testing Flow...............................................................................................................................................................16

8.0 Troubleshooting without The Control Panel.......................................................................... 17
8.1A No Heat or Not Enough Heat (All Models).................................................................................................................17
8.1B No Heat or Not Enough Heat (All Models).................................................................................................................18
8.1C No Heat or Not Enough Heat (All Models).................................................................................................................19
8.1D No Heat or Not Enough Heat (All Models).................................................................................................................20
8.1E No Heat or Not Enough Heat (All Models).................................................................................................................21
8.2 Intermittent Heating ...................................................................................................................................................22
8.3 Nothing Works ...........................................................................................................................................................22
8.4 Hot Tub Doesn’t Come On for Filter Cycle ................................................................................................................23
8.5 House Breaker Trips..................................................................................................................................................23
8.6A J-300 Collection DCU Unit.........................................................................................................................................24
8.6C Hot Tub Light Will Not Come On................................................................................................................................25
8.7 No Jets.......................................................................................................................................................................26
8.8 Ozonator Not Working (Optional) ..............................................................................................................................27
8.9 CLEARRAY Not Working.........................................................................................................................................28
8.10 Weak or Surging Jets ................................................................................................................................................29
8.11 Jets Pump Runs and Quits During Jet Mode.............................................................................................................30
8.12 Circulation Pump Not Working...................................................................................................................................31
8.13 Troubleshooting A Thermal Pump Cutout ..................................................................................................................32
8.14 Pump 1 Hums and Will Not Start...............................................................................................................................32
8.15 SERVICE BULLETIN: 2014 J-300 Summer Logic Upgrade (July 29, 2014).............................................................33
8.16 MicroChip Replacement Procedure...........................................................................................................................34
8.17 48 Frame Jet Pump Change......................................................................................................................................35
APPENDIX .......................................................................................................................................... 36
A1 Checking Voltage to Hot Tub .....................................................................................................................................37
A2 Checking Current Consumption of Devices...............................................................................................................38
A3 Checking Voltages to Devices ...................................................................................................................................39
A4 Testing Flow Switch ...................................................................................................................................................40
A5 About Fuses...............................................................................................................................................................40
A6 The Watchdog “- - -” ..................................................................................................................................................41
A7 Understanding Sanitizers...........................................................................................................................................41
A8 Understanding pH......................................................................................................................................................42
A9 North American 60 Hz 120V/240V Convertible 1-Pump Models ...............................................................................43
A10 North American 60 Hz 240V 2-Pumps Models ..........................................................................................................44
A11 Export 50 Hz 230V 1-Pump Models ..........................................................................................................................45
A12 Export 50 Hz 230V 1- or 2-Pump Models..................................................................................................................46
A13 Load Box Connection Diagrams A - D (North American 60 Hz) ................................................................................47
A14 Temperature Sensor/Hi-Limit Sensor Resistance Chart............................................................................................49
A15 Flow Switch Illustration ..............................................................................................................................................50
A16 Sensor Harness Diagram ..........................................................................................................................................50
A17 Transformer Test........................................................................................................................................................51
A18 Troubleshooting The Optional Stereo System...........................................................................................................52
A20 Glossary of Terms......................................................................................................................................................54
A21 Troubleshooting Data Collection Form ......................................................................................................................55

1
1.0 Standard Troubleshooting Approach (S.T.A.)
1.1 Why a Standard Troubleshooting Approach?
Service prices are basically set by local industry and geographic region. Stiff competition in the ser-
vice industry has made it difcult to raise the price of a service contract; or charge more for time and
materials than the competitive shop down the street. If your service business is to be protable you
must control the overall cost of service. The total cost of service is made up of many individual cost
factors, but three in particular are more important than the rest combined:
1. Time of Repair - How long it takes to nd and x a problem.
2. Time Between Failures - How often you are called to repair any one particular hot tub? How many
times are you called back to x the same problem on the same hot tub?
3. Parts Usage - Except in rare circumstances, only one part fails. How many parts do you replace
before you nd the bad one?
This S.T.A. manual has been designed to help you control the overall cost of service by focusing on
the three important aspects of your job outlined above. The S.T.A. will help you x your customer’s
hot tub quickly, x it well, and use fewer parts.
1.2 How to Use the S.T.A.
The S.T.A. was developed by the Technical Support Department and is designed to be the commu-
nications link between you and your customers. If you call for help on any symptom covered in this
book, you will be told to do what the S.T.A. recommends, therefore, you will save time by calling tech-
nical support after you have done what the S.T.A. tells you to do.
1.3 Professional Customer Service
Doing your job in a way that keeps cost of service low and prot margin high also creates customer
satisfaction. That’s being a professional!
1.4 Before Leaving the Shop
Phone the customer(s), personally if possible, and ask what problem(s) should be corrected. This
may not tell you what work must be done or what part(s) must be replaced, but it will tell you what you
must x after you arrive.
1.5 Fixing the Hot Tub
Use the S.T.A. to see how the Technical Support Department would approach the customer’s com-
plaint. Try to x the problem following the S.T.A. Use your experience and other information to help
you answer any “Whys” or “Hows.” The S.T.A. is designed to keep unnecessary part replacement to
a minimum. Least expensive, most likely, and easily changed parts are always swapped rst. Some
parts, like control panels and temperature sensors do not require complete installation to be tempo-
rarily swapped out for testing purposes. You should carry such spares as “Tools.”
1.6 Before Calling Technical Support
Make sure you have followed the S.T.A. and lled out a “Troubleshooting Data Collection
Form” (refer to example on page 55). Have the S.T.A. manual and the Troubleshooting
Data Worksheet near the telephone. Technical Support can help you best if these two things
become the communications tools for the phone call.
1.7 Before Leaving the Customer
Even if you didn’t have to ll out a Troubleshooting Data Collection Form, please do so. If this is a
warranty repair, the information will be needed when your ofce lls out the “Warranty reimburse-
ment form.” In any case, it will help you spot trouble before it happens. Pumps burn up if voltage at
the hot tub is too low. Circuit breakers trip if heaters and motors draw too much current (Amps). Wires
overheat and connections burn if wire size is too small or push-on connectors are loose. Call backs
cause cost of service to increase!

2
1.8 Satisfying the Customer
Most customers do not care what work you have done or what parts you have
replaced, but they always care whether or not their problem goes away. When you are
done, show them that their problem is gone. If they ask how you did it, take a few
minutes to explain. Show them the bad part(s) and explain or show why it is bad.
• • Develop the habit of examining the hot tub’s you service. Compliment custom-
ers on the things they are doing right. Tell them how their care and attention can
stop trouble before it starts.
• • Mention if you noticed any adverse conditions, especially in hot tub’s under warranty or con-
tract, that could lead to failure. Can the customer correct the problem? Would they like you to
correct it? Can you recommend someone? Would they like an estimate?
• • Think of yourself and the customer as a “team” trying to keep the product up and running as
cost-effective and time-efcient as possible. That’s good for the customer, and it is good for your
business.

3
2.0 Electro Static Discharge (E.S.D.)
2.1 E.S.D. - What is it? What does it do?
Static electricity is always being generated around us, even at those times of
the year when we no longer get zapped after walking across a rug and touching
something.
Like all state-of-the-art circuit boards, the hot tubs circuit board can be damaged by unnoticed static
electricity. Damaged is the key word. Sometimes a board which has been subjected to E.S.D. will fail
immediately upon being put back into service.
• If the hot tub runs only a few days, the customer thinks you provided poor service.
• If the hot tub runs only a few months, the customer thinks the circuit board is a low quality
product.
• The customer loses use of the hot tub. You lose money because you must go back to make it
right. Jacuzzi loses its reputation for quality.
2.2 Avoiding E.S.D. Damage
We can’t prevent static charges from building up within our bodies as we go about our jobs, so we
must do three things to protect circuit boards from getting zapped:
1. Never transport or ship circuit boards - Good boards or bad
boards - except in static protective bags.
2. Never remove the board from the static protective bag unless
you are ready to install it in the hot tub.
3. After removing the bad board from the hot tub, A) lay it on
the ground, B) remove the replacement board from the static
protective bag, C) lay the replacement board on the ground,
D) place the bad board in the bag from which you removed
the replacement board, E) return bad board(s) in undamaged
sealed static protective bags.
2.3 What About Wrist Straps and Special Mats?
The purpose of these devices is to keep the technician, the work surface, and the circuit board at the
same electrical potential, and to drain into ground any static charges which might build up. Proper use
of the wrist strap and special mat guarantees maximum protection against E.S.D. damage.
2.4 Must Wrist Straps and Mats be Used When Replacing A Circuit Board?
No, if you keep the spare board in the protective bag during transport and you observe a few simple
techniques during replacement.
The possibility of E.S.D. damage to the circuit board during replacement will be minimal because of
the hot tub’s design and the way you normally work on it. Touching the grounding lug or heater will
drain all built-up static charges from your body much like a wrist strap would. Laying the bad board
on the ground will tend to keep it neutral. Touching a nger to the grounding lug or heater immedi-
ately before removing the good board from the bag will drain any charges built up by the rustling of
your clothes. Laying the good board on the ground after removing it from the bag will tend to keep it
neutral. Another quick touch of the grounding lug or heater before picking up the bad board will again
drain built up charges. Slipping the bad board into the protective bag will allow it to be transported
safely. Another quick touch of the grounding lug or heater before picking up the good board will again
drain any charges built up by the rustling of your clothes. In the process of installing the replace-
ment board, you and the board will be grounded to the load box, grounding lug, or heater, draining off
charges you may build up during installation.

4
3.0 Main Control Panel Functions
3.1 J-300 Control Panel (2014+)
12
I
JB K
A
2-Pump Control Panel Shown
E
CD
F
H
G1
I
J
B
A
1-Pump Control Panel Shown
E
CD
F
K
G
1-pump J-315 and J-325
2-pump J-335, J-345, J-355, J-365, J-375 and J-385
A. 2014+ P/N 6600-715 SMT panel A. 2014+ P/N 6600-713 SMT panel
Display shown for example purposes only, actual water tem-
perature display will vary.
Button Function
ACLEARRAY Button: Manually activates the CLEARRAY system for a one-hour period.
BCLEARRAY Indicator: Lit when the CLEARRAY system is on. Flashing when the UV bulb
needs to be replaced.
C
Light Button: Turns waterfall, footwell, cup holders and backlit pillows on in unison. Press
once for high intensity, a second time for medium intensity, a third time for low intensity, a
fourth time to turn off. The displayed color is changed using the light mode button below.
DLight Mode Button: Selects one of 4 color modes for waterfall, cup holders and backlit pil-
lows.
ECooler Button: Decreases water temperature setpoint.
FWarmer Button: Increases water temperature setpoint.
GJets 1 Button: Turns high-speed jets pump #1 on and off. Press once to turn on; a second
time to turn off.
HJets 2 Button (J335 to J385): Turns high-speed jets pump #2 on and off. Press once to turn
on; a second time to turn off.
IMenu Button: Allows access to the programming menus.
JHeat Indicator: Lit when heater is on.
KLED Display: Can display current water temperature (default display), water temperature
setpoint, selected ltration/heating mode, and error messages.
OPERATION DETAILS
• Temperature Adjustment: 65 to 104°F (18 to 40°C). Factory default setting is 100°F (38°C).
• CLEARRAY Operation: System runs for 1 hour (when manually activated), then automatically
shuts off.
• Light Operation: All LED lights run for 2 hours, then automatically shut off.
• Jets 1/Jets 2 Button Operation: Jets run for 20 minutes when activated, then turn off automati-
cally to conserve energy. Simply press either jets button to continue operation for an additional
20 minutes.

5
4.0 Control Panel Functions
4.1 Setting Water Temperature
Press either the Warmer ( ) or Cooler ( ) button to adjust the current
temperature setting. The current set temperature 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 temperature 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.
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.
4.2 Activate Jet Pumps
The JETS 1 button activates jets pump 1. The rst press turns jets pump 1 on; the second
press turns jets pump 1 off. The JETS 2 button activates jets pump 2 (if equipped). Turns
jets pump 2 on; the second press turns jets pump 2 off. When manually activated, either
pump will automatically turn off after 20 minutes.
4.3 Light On/Off Button
Pressing this button activates the waterfall light, footwell light, lighted cup holders, and backlit
pillows lights in unison as follows: high - medium - low - off.
Note: Lights automatically turn off after 2 hours.
4.4 Light Mode Button
This button offers 4 light modes for your enjoyment. Press this button to select your favorite
lighting effect as follows:
12
Press
Once
Press
Again
Press
Again
Press
Again Solid Color Mode:
Selects one of 7 solid (high-intensity) colors of choice.
AMBER (X7) GREEN (X8) AQUA (X9) NEAR
WHITE (X10)
BLUE (X4) VIOLET (X5) RED (X6)
Freeze Color Blend Mode:
Selects or “freezes” your low speed blending color of choice.
Low-Speed Color Blend Mode
High-Speed Color Blend Mode

6
4.5 Jets
The water ow through individual jets in your spa can be adjusted or turned off by rotating
the outside jet ring. Some jets offer an adjustable center nozzle that allows you to change
the water discharge angle. Simply tilt the center nozzle in these jets to the desired angle to
customize your personal massage. Other jets offer a spiral action that produces a surging
stream of air and water that provides a vigorous massage.
Note: Always keep at least 6 adjustable jets open at all times to ensure proper ltration
characteristics within the spa.
4.6 Selecting Desired Massage Action
All models incorporate a massage selector valve that allows you to customize the
massage and performance by diverting water between various jet systems within the spa.
Simply turn valve to positions A, B or C to divert water pressure to various jet groups.
Note: The valve is intended to operate in positions A (Combo), B, or C for optimum
performance. It is considered normal for sound levels within the valve to increase between these
positions due to the large amounts of water owing through it. For optimum ltration benets, always
leave this valve in position A when the spa is covered and select positions B or C for maximum jet
performance during spa use.
4.7 Waterfall Feature
The waterfall feature allows you to independently control it for a customized soothing effect. The
waterfall is on when the circulation pump is on. The JETS 1 or CLEARRAY buttons will also activate
the waterfall feature. Waterfall Operation Details:
A. Push thumb wheel on top of waterfall to the left (while in spa) to start or increase
ow.
B. Push thumb wheel on top of waterfall to the right (while in spa) to slow or turn ow
off.
Note: When the waterfall is in the OFF position, some water could still ow through.
4.8 Air Controls
Certain jet systems have their own “toggle” on/off air control. Each control introduces air
into the water lines that supply specic jet groups. Simply press any air control button
Jacuzzi logo side down to open or press the opposite side of button to close.
Note: To minimize heat loss, close all air controls (Jacuzzi logo up) when spa is not in use.
CB
A

7
5.0 Standard Programming Functions
5.1 Menu Programs Button
• Follow the steps below to access the programming menus.
Menu button LED display Menu name Menu Function
Press 1x Primary Filtration
Menu
Allows access to the programming menu for
the primary ltration that uses the circulation
pump. Although the spa has a default setting
this feature is programmable. While in this
menu, you can also program the Change Filter
Timer.
Press 2x Secondary Filtra-
tion Menu
Allows access to the programming menu for
the secondary ltration that uses Jets Pump
1. These cycles are used to provide additional
skimming. Although the spa has a default set-
ting this feature is programmable.
Press 3x CLEARRAY Menu
Allows access to the CLEARRAY® bulb re-
placement countdown timer. Your spa is
equipped with the CLEARRAY system that
uses a UV bulb to purify the water. This bulb
must be replaced every year. By programming
the countdown timer, a reminder is displayed
on the topside when it is time to replace the
bulb. The LED screen will ash between “blb”
and the set temperature. Additionally, the
CLEARRAY indicator light will blink. The timer
needs to be reset in order to clear the mes-
sage.
Press 4x Economy Menu
Allows access to the economy programming
menu. The economy feature has either an “on”
or “off” setting where the heater is allowed to
activate for a maximum of 30 minutes at the
end of each secondary ltration cycle.
Press 5x Lock Menu Activates the locking modes to certain compo-
nents, features or operations.

8
5.2 Primary Filtration Program
• Follow the steps below to access the program. Included within the Primary Filtration Menu, is the
Change Filter feature.
•Two methods for setting the lter cycle start time are possible:
1. Turn power on to the hot tub two minutes prior to the desired lter cycle start time, or
2. Press and hold the WARMER, COOLER and JETS Pump 1 buttons at the same time, to
reset the control panel and start the power-up sequence.
A. Cleanup “Blow-Out” Cycle
This cycle is activated once every 24 hours in either Standard or Economy mode. The Cleanup
Cycle shall start before the rst ltrations cycle. Pump 1 will activate for 1 minute and then shut off.
Then Pump 2 will activate for 1 minute and then shut off.
B. For Models J335 to J385
Two minutes after power is applied to the spa, an automatic primary ltration cycles begins. The
circulation pump is activated and set to run for 8 hours a day (factory default). The circulation pump
draws water through the skimmer bag and one of two lter cartridges to effectively remove small
debris in your spa. During the primary ltration cycle, the circulation pump and CLEARRAY are acti-
vated. The factory default setting is PF2. This setting is programmable.
Note: The circulation pump also supplies heated water to the spa when the heater turns on. Any
time the circulation pump runs outside of a programmed cycle (except for PF0 and PF6), that
run time will reduce the length of the next cycle.
C. For Models J315 and J325
Your new spa includes a 24-hour primary ltration system, which lters the water continuously
(factory default). The circulation pump draws water through the skimmer bag and one of the two lter
cartridges to effectively remove small debris in your spa. The factory default setting is PF6. This set-
Menu button Action Result
Press once To access the Primary Filtration Menu. The LED will display “PF.”
or Press once Activates the system for changes. Last programmed cycle blinks once on
the display.
or Press
continually
Scrolls through the menus as follows: , , , , ,
, , or
Press once The new programmed cycle will blink twice on the display to conrm your
selection.
No ltration
4 hours of ltration per day
8 hours of ltration per day (default setting for J-335 to J-385)
12 hours of ltration per day
16 hours of ltration per day
20 hours of ltration per day
24 hours of ltration per day (default setting for J-315 and J-325)
2 hours of ltration – 4 times per day
3 hours of ltration – 4 times per day

9
ting should not be altered. Running the circulation pump less than the factory recommended time will
result in issues with water quality maintenance.
Note: The 24-hour primary ltration system also supplies heated water to the spa when the heater
turns on.
5.3 Change Filter Timer Program
• Follow the steps below to access the Change Filter Timer.
Menu button Action Result
Press once To access the Primary Filtration Menu. The LED will display “PF.”
or Press
continually
Scrolls through the menus as follows: , , , , ,
, , , ,
Press once To access the Change Filter Timer. The display on the LED screen will
blink once to indicate that the system is ready to accept changes.
or Press con-
tinually
To add or subtract days in increments of 10 days. Range is from 0 to 180
days.
Press once Once the number of days is selected, to conrm your selection.
When time
expires The LED screen will ash between 0 and
5.4 Secondary Filtration Program
The jets pump 1 activates during the secondary ltration to provide additional skimming. The spa is
programmed with a default setting of SF0 but can be programmed to any of the cycle settings listed
below, Figure 5. These cycles schedule the jets pump 1 to run for a preset amount of time per day, in
addition to normal operation.
Note: During the secondary ltration the jets pump 1, circulation pump and CLEARRAY are activated.
• Follow the steps below to access the program.
Menu button Action Result
Press twice To access the Secondary Filtration Menu. The LED will display “SF.”
Press once Activates the system for changes. Last programmed cycle blinks once
on the display.
or Press
continually
Scrolls through the menus as follows: , , or
Press once The new programmed cycle will blink twice on the display to conrm
your selection.
No ltration
10 minutes of ltration every 12 hrs
10 minutes of ltration every 8 hrs
10 minutes of ltration every 6 hrs

10
5.5 CLEARRAY Program
• To make changes to the CLEARRAY bulb replacement timer or to reset it , follow the steps below
to access the program.
Menu button Action Result
Press 3x To access the CLEARRAY Menu. The LED will display “U.”
Press once Activates the system for changes. Either zero or the remaining number
of days will display.
Press once To access the UV bulb replacement timer. The number of days on the
display will blink once.
or Press Increases or decreases the number of days in increments of 10 except
for the last selection that is a 5-day increment.
Press once The new selection will blink twice on the display to conrm your selec-
tion.
5.6 Economy Mode
• Follow the steps below to access the program.
• In Economy mode, the heater only activates after a Secondary Filtration cycle has nished. The
heater will run for a maximum of 30 minutes.
• The heater can turn off prior to the 30 minutes if the programmed water temperature is reached.
• The Secondary Filtration program determines the number of cycles (from 1 to 4) that the heater
will be allowed to activate.
For example, if you have programmed the SF3 setting (10 minutes of ltration every 6 hours), then
the heater will run, for a maximum of 30 minutes, after the end of each of the 10-minute secondary
ltration cycle, for up to four times per day.
Menu button Action Result
Press 4x To access the Economy Mode Menu. The LED will display “ECO.”
Press once Activates the system for changes. Current programmed mode blinks
once on the display.
or Press Toggles between: , or
Press once The new program will blink twice on the display to conrm your selec-
tion.
CYCLE RUN TIME HEATER RUN TIME
No ltration Maximum of a half hour per day
10 minutes of ltration every 12 hrs Maximum of a half hour every 12 hrs (after sec-
ondary cycle ends)
10 minutes of ltration every 8 hrs Maximum of a half hour every 8 hrs (after sec-
ondary cycle ends)
10 minutes of ltration every 6 hrs Maximum of a half hour every 6 hrs (after sec-
ondary cycle ends)

11
5.7 Lock Mode
• Follow the steps below to access the program.
• The Lock menu gives you the option to lock specic features of the spa. There are three locking
modes, L1, L2 and L3.
Normal operation
The jets pumps and heater are deactivated. This mode can be used when replacing or
cleaning the spa lters.
The jets pumps, adjust temperature and CLEARRAY buttons are deactivated. This mode
can be used to prevent unauthorized use of the spa.
The temperature and CLEARRAY buttons are deactivated. This mode can be used to
prevent unauthorized temperature adjustments.
Menu button Action Result
Press 5x To access the Locking Modes. The LED will display “LOC.”
Press once Activates the system for changes. Either OFF or the last lock mode will
display.
or Press Scrolls through the menus as follows: , , or
Press once The new selection will blink twice on the display to conrm your selec-
tion.
5.8 Top Menu Lock
• Follow the steps below to access the program.
• The Top Menu Lock gives you the option to lock the programming menus of the spa. You can
lock the Menu access button. When the lock feature is activated, access to the Primary Filtration,
Secondary Filtration, CLEARRAY, Economy and Lock programming menus is deactivated. The
temperature setting feature, jets pumps operation and lighting features are still accessible.
To lock the menu options
Menu button Action Result
Press and
hold for 10
seconds
To prevent unauthorized use of the menu features. The LED will display
“LOC.” The display will blink twice to conrm and save your selection.
When this feature is active. Any time the menu button is pressed the display will show “LOC.”
To unlock the menu options
Press and
hold for 10
seconds
The new selection will blink twice on the display to conrm and save
your selection.

12
6.0 Understanding Circuit Board Pin Assignments
6.1 Circuit Board Jumpers (All North American 60Hz 2-Pump Models)
All North American 2-pump circuit boards can be congured for either 40, 50A, or 60A operation.
Refer to jumper pin table and circuit board diagram below for specic system details (factory jumper
settings shown):
Circuit Board #6600-293; Micro Chip 3.82+ (started started July 15, 2014)
Pins 1-2: Jumper ON Enables 40A logic; heater will not operate while any
pump is running.
Pins 1-2: Jumper OFF Enables 50A logic; heater will operate while one pump
are running. This is the factory default.
Pins 3-4: Jumper ON Enables 2 Pump Operation
Pins 3-4: Jumper OFF Not Used. (Enables 1 Pumps Operation)
Pins 5-6: Jumper ON Enables 60A logic; (Remove JP1 1-2 Jumper). Allows
the heater to operate when both pumps are on running.
Pins 5-6: Jumper OFF Leave off for 40A or 50A Logic
Pins 7-8: Jumper ON Enables Celsius (°C) temperature display
Pins 7-8: Jumper OFF Enables Fahrenheit (°F) temperature display
6.2 Circuit Board Jumpers (All Export 50 Hz 2-Pump Models)
These circuit boards can be congured for 20A, 30A or 40A logic modes. Each mode affects overall
energy consumption and heater performance.
Pins 1-2: Jumper ON Enables 20A logic; heater will not operate while any jets pump is running.
This is the factory default.
Pins 1-2: Jumper OFF Enables 30A logic; heater will operate with one jets pump running.
Pins 3-4: Jumper ON Enables 2 Pump Operation
Pins 3-4: Jumper OFF Enables 1 Pump Operation
Pins 5-6: Jumper ON 40A logic (Remove JP1 1-2 Jumper); allow heater to operate with both jets
pumps running in high speed
Pins 5-6: Jumper OFF Leave off for 20A or 30A logic setting
Pins 7-8: Jumper ON Enables Celsius (°C) temperature display
Pins 7-8: Jumper OFF Enables Fahrenheit (°F) temperature display
6.3 Circuit Board Jumpers (All North American 60 Hz 1-Pump Models)
All North American 1-pump circuit boards can be congured for either 120V/15A or 240V at 30A or
40A operation. Refer to jumper pin table and circuit board diagrams below for specic system details
(factory jumper settings shown):
Circuit Board #6600-295; Micro Chip 3.82+ (started July 15th 2014)
Pins 1-2: Jumper ON Enables 15A logic; forces heater off when pump is on
high speed (3-wire 120 VAC operation only). This is
the factory default.
Pins 1-2: Jumper ON Enables 30A logic; forces heater off when pump is on
high speed (4-wire 120/240 VAC operation only)
Pins 1-2: Jumper OFF Enables 40A logic; allows the heater to operate when
pump is on high speed (4-wire 120/240 VAC opera-
tion only)
Pins 3-4: Jumper ON Not Used
Pins 3-4: Jumper OFF Enables 1 Pump Operation
Pins 7-8: Jumper ON Enables Celsius (°C) temperature display
Pins 7-8: Jumper OFF Enables Fahrenheit (°F) temperature display
RED
J6
BLK
J5
J1
J2
J3
J4
F1
JP1
4
2
3
1
6 5
8 7
7 6 2 4
J20
K1
K2
K3
K4
K5
K6 K7 K8
J21
J11
J12
J13
J14
J15
J16
J17
J18
J19
J7 J8 J9 J10
JP1
4
2
3
1
6 5
8 7
RED
J6
BLK
J5
J1
J2
J3
J4
F1
JP1
4
2
3
1
6 5
8 7
7 6 2 4
J20
K1
K2
K3
K4
K5
K6 K7 K8
J21
J11
J12
J13
J14
J15
J16
J17
J18
J19
J7 J8 J9 J10
JP1
4
2
3
1
6 5
8 7

13
6.4 Circuit Board Jumpers (All Export 50 Hz 1-Pump Models)
These circuit boards can be congured for 20A or 30A logic. Each mode affects overall energy con-
sumption and heater performance.
Pins 1-2: Jumper ON Enables 20A logic; forces heater off when jets pump 1 is running in high
speed. This is the factory default.
Pins 1-2: Jumper OFF Enables 30A logic; allows heater to operate when jets pump 1 is running in
high speed
Pins 3-4: Jumper ON Enables 2 Pump Operation (2-pump models only)
Pins 3-4: Jumper OFF Enables 1 Pump Operation
Pins 5-6: Jumper ON Not Used
Pins 5-6: Jumper OFF Not Used
Pins 7-8: Jumper ON Enables Celsius (°C) temperature display
Pins 7-8: Jumper OFF Enables Fahrenheit (°F) temperature display

14
7.0 Troubleshooting Using The Control Panel
7.1 Control Panel Displays
Complete operating instructions for the control panel can be found in the owner’s manual. The hot
tubs self-diagnostic control system constantly monitors the hot tub for proper operation. When any-
thing goes wrong, the control panel displays a message for the user which may result in a service
call.
7.2 Control Panel Default Display
The control panel displays the following information during initial start-up:
1. Control panel displays current software microchip revision, then
2. Control panel displays “888” and all indicator LED’s are lit, permitting visual
inspection of all display segments and indicator lights for proper operation.
3. After the initial start-up sequence ends actual water temperature is displayed. If the
water temperature at this time is less than the factory default temperature setting of
100°F (38°C):
Approximately two minutes after initial start-up, the rst ltration cycle begins to operate. The ltra-
tion cycle can be modied any time after the start-up sequence ends. You will be able to select a
pre-programmed lter cycle and reset your temperature setpoint at this time. Press either COOLER
or WARMER button once at this time to display the current temperature setpoint. You can change
the setpoint by pressing either COOLER or WARMER button within 3 seconds. Each button press
increases or decreases the temperature setpoint by one degree. Three seconds after the setpoint is
set, the display defaults back to actual water temperature.
7.3 Control Panel Status and Error Messages
CF Clean Filter (All Models)
The clean lter timer has expired. The spa lters need to be cleaned or replaced. The
message will ash between “CF” and the water temperature. The countdown timer for
the Change Filter feature needs to be reset. New lters can be purchased from a local
Jacuzzi dealer.
SN1 Nonfunctional Hi-limit Sensor (All Models)
Open or shorted hi-limit sensor. Heater is deactivated. Refer to test steps 1-2 below:
1. Turn off main breaker to hot tub. Refer to appendix, page 49, for expected hi-limit
sensor resistance/water temperature values.
2. Remove hi-limit sensor connector from circuit board test point 21. Refer to pages 43-46 for
your circuit board conguration. Set ohmmeter to 100 kΩ- 200 kΩrange, then measure resistance
across hi-limit sensor wires (refer to page 49). If sensor resistance tests OK (± 200 Ω), check
sensor connections. If connections are OK, replace circuit board. If sensor resistance is incorrect,
replace hi-limit sensor.
SN2 Nonfunctional Temperature Sensor (All Models)
Open or shorted temperature sensor. Heater is deactivated. Refer to test steps 1-2
below:
1. Turn off main breaker to hot tub. Refer to appendix, page 49, for expected hi-limit sensor
resistance/water temperature values.
2. Remove temperature sensor connector from circuit board test point 21. Refer to pages 43-46
for your circuit board conguration. Set ohmmeter to 100 kΩ- 200 kΩrange, then measure
resistance across temperature sensor wires (refer to page 49). If sensor resistance tests OK
(± 200 Ω), check sensor connections. If connections are OK, replace circuit board. If sensor
resistance is incorrect, replace temperature sensor.

15
FL1 & FL2 Water Flow Problem (All Models)
• FL1: ow switch not closed when circulation pump is running. Heater is deactivat-
ed. Proper water ow is inhibited or ow switch may be obstructed, misaligned, or
defective. Refer to troubleshooting steps 1-5 below:
1. Remove lter and allow air to bleed out of cartridge. Check lter for trapped air.
2. Check for proper water level.
3. Check for clogged lter cartridge.
4. Check for sticking or damaged oating skimmer.
5. If problem persists, refer to Section 7.4 (page 16) for ow switch testing instructions.
• FL2: ow switch switch closed when pump is not running. Heater is deactivated and pump may
or may not turn on. Flow switch is defective. Refer to Section 7.4 (page 16) for switch testing
instructions.
COL Cool Condition (All Models)
If the water temperature drops 20°F (11°C) below the set temperature, the circulation
pump and heater will activate to raise the water temperature within 15°F (8°C) of the set
temperature. No corrective action is necessary. This condition is common during water
changes and/or rst time ll ups.
ICE Freeze Condition (All Models)
Freeze Protection - A potential freeze condition has been detected. Water temperature is
below 55°F (12.78°C). No action is required. Jets Pump 1, Jets Pump 2 and the circula-
tion pump will activate for 10 minutes, then turn off. Then the circulation pump and the heater will acti-
vate for 10 minutes. The two cycles shall repeat until the water temperature reaches 65°F (18.33°C).
OH Overheat Condition (All Models)
Water temperature is above acceptable limits. DO NOT ENTER HOT TUB WATER!
Water temperature has reached 116°F (47°C) and the low speed pump has activated to
circulate water through the heater to cool it down for approximately 6 minutes. Refer to test steps 1-4
below:
1. Verify actual water temperature with an accurate thermometer. If actual water temperature is less
than 110°F (44°C), proceed to steps 2-4.
2. Turn off main breaker to hot tub. Refer to appendix page 49 for expected hi-limit/temperature
sensor resistance/water temperature values.
3. Remove hi-limit sensor connector from circuit board points 22. Verify that the heater is not
excessively hot. Refer to pages 43-46 for your circuit board conguration. Set ohmmeter
to 100-200 kΩ range, then measure resistance across sensor wires (refer to page 49). If
resistance tests OK (± 200Ω), check wiring harness connections. If wiring harness connections
test OK, replace circuit board. If sensor resistance is incorrect, replace hi-limit sensor.
4. Set ohmmeter to 100-200 kΩ range, then measure resistance across temperature sensor wires
(refer to page 49). If resistance tests OK (± 200Ω), replace circuit board. If temperature sensor
resistance is incorrect, replace sensor.
In extreme bitter cold weather 32°F (0°C) we recommend you program the circulation pump
to run 24 hours.

16
“- - -” Watchdog (All Models)
Water temperature has reached 118°F (48°C). DO NOT ENTER HOT TUB WATER!
The entire system is disabled. Refer to test steps 1-4 below:
1. Check hi-limit and temperature sensor resistance values. Both sensors should
measure close in resistance to each other (e.g. one may be defective and way out of range). Refer
to appendix page 49 for expected hi-limit/temperature sensor resistance/water temperature
values. If either sensor is faulty, replace it and recheck system. If problem persists, proceed to
steps 2.
2. Plug in new control panel. If problem persists, proceed to step 3. If problem corrects, replace
panel.
3. Check voltage at transformer secondary. Refer to Section A29, page 51 for transformer testing
instructions. If voltage is bad, replace transformer. If voltage is good, perform step 4.
4. Check circuit board transformer connections. If connections are loose or oxidized, repair
connections and retest system. If problem persists, replace circuit board.
7.4 Testing Flow
Testing the Flow Switch
A. Verify ow switch directional arrow is pointing in the direction of ow
away from the heater output. If switch orientation is incorrect, loosen
or tighten switch no more than 1/2 turn, being careful not to bottom out
switch in tting. The switch’s ow arrow must be parallel to tee tting
as shown (Fig. 1). Test system operation. If condition corrects, skip
steps B-C.
B. Remove switch from tting making note of the number of turns
(revolutions) it takes to do so. Visually inspect switch for debris
interference or damage. If debris is present, remove debris, then
install switch with the same number of turns as originally installed.
Test system. If switch is damaged, replace switch and retest system. If
condition corrects, skip step C.
C. Test switch operation with an ohmmeter (set to 1000-2000 Ω range) for
continuity across switch terminals. Measure resistance across switch
terminals for innite resistance with the magnet arm not touching the
switch body (Fig. 2), and for continuity (0 Ω) with the magnet arm
touching the switch body (Fig. 2). If ow switch tests OK, check switch
wiring harness. If wiring harness tests OK, replace circuit board.
D. Verify that low ow is not preventing the ow switch from closing.
FLOW
Incorrect
Orientation
Correct
Orientation
FLOW
Fig. 2
Fig. 1
Pipe
End View
correct
incorrect
Arrows
not
aligned Arrows
aligned
Open Closed
DCV ACV
DCA
OFF
1000
200
20
2000m
200m
2000k
200k
20k
2000
200
10A
200m
20m
2000µ
200µ
Ω
+
750
200
DCV ACV
DCA
OFF
1000
200
20
2000m
200m
2000k
200k
20k
2000
200
10A
200m
20m
2000µ
200µ
Ω
+
750
200
DCV ACV
DCA
OFF
1000
200
20
2000m
200m
2000k
200k
20k
2000
200
10A
200m
20m
2000µ
200µ
Ω
+
750
200
Infinite ΩContinuity 0 Ω