Viking spas TP500S Series User manual

1
This navigation guide corresponds with the TP500S Control Panel (designed for BP systems) by Balboa Water Group. 3030 Airway Ave, Costa Mesa, CA 92626. (714) 384-0384. © Balboa Water
Group. All rights reserved. Information compiled by Viking Spas. 2725 Prairie St SW, Grand Rapids, MI 49519. www.vikingspas.com. (616) 248-7800. [email protected]. © 2022 Viking Spas, Inc
TP500S Control Panel
System Model: All BP series systems
Panel Model: TP500S Series
Display Icons
A - Heat
B - Ready Mode
C - Rest Mode
D - bba 2 on
E - Wi (Cloud Connection)
F - Light
G - Cleanup Cycle
H - Jets 1
I - Jets 2
J - Blower
K - Auxiliary (Jets 3)
L - Temperature Range (High/Low)
M - Set (Programming)
N - Filter Cycle (1 or 2 or Both)
O - AM or PM (Time)

2
This navigation guide corresponds with the TP500S Control Panel (designed for BP systems) by Balboa Water Group. 3030 Airway Ave, Costa Mesa, CA 92626. (714) 384-0384. © Balboa Water
Group. All rights reserved. Information compiled by Viking Spas. 2725 Prairie St SW, Grand Rapids, MI 49519. www.vikingspas.com. (616) 248-7800. [email protected]. © 2022 Viking Spas, Inc
Main Menu
Navigation
Navigating the entire menu structure is done with 2 or 3 buttons on the control panel. In the navigation diagrams, Temperature
buttons are indicated by a single button icon. Panels that have two Temperature buttons (Warm and Cool) can use both of them to
simplify navigation and programming where a single Temperature icon is shown.
Typical use of the Temperature button(s) allows changing the Set Temperature while the numbers are ashing in the LCD. The menus
can be exited with certain button presses. Simply waiting for a few seconds will return the panel operation to normal.
The MENU/SELECT Button is used to choose the various menus and navigate each section. Follow along with the chart below for
navigating menu settings.
Power-up Screens
Each time the system powers up, a series of numbers is displayed.
After the startup sequence of numbers, the system will enter Priming Mode (See Page 4).

3
This navigation guide corresponds with the TP500S Control Panel (designed for BP systems) by Balboa Water Group. 3030 Airway Ave, Costa Mesa, CA 92626. (714) 384-0384. © Balboa Water
Group. All rights reserved. Information compiled by Viking Spas. 2725 Prairie St SW, Grand Rapids, MI 49519. www.vikingspas.com. (616) 248-7800. [email protected]. © 2022 Viking Spas, Inc
Simplied Menu
There is a way to limit what settings are available on your topside control. Dip switch 7 disables most menu settings to allow easier
navigation. Below is how the simplifed menu will appear on your topside navigation screen.
Flip (Invert Display)

4
This navigation guide corresponds with the TP500S Control Panel (designed for BP systems) by Balboa Water Group. 3030 Airway Ave, Costa Mesa, CA 92626. (714) 384-0384. © Balboa Water
Group. All rights reserved. Information compiled by Viking Spas. 2725 Prairie St SW, Grand Rapids, MI 49519. www.vikingspas.com. (616) 248-7800. [email protected]. © 2022 Viking Spas, Inc
Fill it up
Preparation and Filling
Fill the spa to its correct operating level through the skimmer opening. Be sure to open all valves and jets in the plumbing system
before lling to allow as much air as possible to escape from the plumbing and the control system during the lling process.
After turning the power on at the main power panel, the top-side panel display will go through specic sequences. These sequences
are normal and display a variety of information regarding the conguration of the hot tub control.
Priming Mode - MO19*
This mode will last for 4-5 minutes or you can manually exit the priming mode after the pump(s) have primed.
Regardless of whether the priming mode ends automatically or you manually exit the priming mode, the system will automatically
start normal heating and ltering at the end of the priming mode. During the priming mode, the heater is disabled to allow the prim-
ing process to be completed without the possibility of energizing the heater under low-ow or no-ow conditions. Nothing comes
on automatically, but the pump(s) can be energized by pushing the “Jets” or “Aux” buttons.
Priming the Pumps
As soon as the above display appears on the panel, push the “Jets” button once to start Pump 1 in low-speed and then again to
switch to high-speed. Also, push the “Jets 2” or “Aux” button, if you have a 2nd pump, to turn it on. The pumps will now be running
in high-speed to facilitate priming. If the pumps have not primed after 2 minutes, and water is not owing from the jets in the spa,
DO NOT allow the pumps to continue to run. Turn o the pumps and repeat the process.
Note: Turning the power o and back on again will initiate a new pump priming session. Sometimes momentarily turning the pump
o and on will help it to prime. Do not do this more than 5 times. If the pump(s) will not prime, shut o the power to the spa and call
your dealer.
Important: A pump should not be allowed to run without priming for more than 2 minutes. Under NO circumstances should
a pump be allowed to run without priming beyond the end of the 4-5 minute priming mode. Doing so may cause damage to
the pump and cause the system to energize the heater and go into an overheat condition.
Exiting Priming Mode
You can manually exit Priming Mode by pressing the “Warm” or “Cool” button. Note that if you do not manually exit the priming
mode as described above, the priming mode will be automatically terminated after 4-5 minutes. Be sure that the pump(s) have been
primed by this time.
Once the system has exited Priming Mode, the top-side panel will momentarily display the set temperature but the display will not
show the water temperature yet, as shown below.
This is because the system requires approximately 1 minute of water owing through the heater to determine the water
temperature and display it.
*MO19 is a Message Code (See Page 16).

5
This navigation guide corresponds with the TP500S Control Panel (designed for BP systems) by Balboa Water Group. 3030 Airway Ave, Costa Mesa, CA 92626. (714) 384-0384. © Balboa Water
Group. All rights reserved. Information compiled by Viking Spas. 2725 Prairie St SW, Grand Rapids, MI 49519. www.vikingspas.com. (616) 248-7800. [email protected]. © 2022 Viking Spas, Inc
Spa Behavior
Pumps
Press the “Jets” button once to turn Pump 1 on or o, and to shift between low and high speeds. If left running, the pump will turn
o after a time-out period.
The low-speed of Pump 1 runs when the blower or any other pump is on. If the spa is in Ready Mode (See Page 9), Pump 1 low may
also activate once in a while for at least 1 minute to detect the spa temperature (polling) and then to heat to the set temperature if
needed. When the low-speed turns on automatically, it cannot be deactivated from the panel, however the high speed may be started.
Filtration and Ozone
Pump 1 low and the ozone generator will run during ltration.
The system is factory-programmed with one lter cycle that will run in the evening (assuming the time-of-day is properly set) when
energy rates are often lower. The lter time and duration are programmable (See Page 7). A second lter cycle can be enabled as
needed.
At the start of each lter cycle, all water devices (other than the primary pump) will run briey to purge the plumbing to maintain
good water quality.
Freeze Protection
If the temperature sensors within the heater detect a low enough temperature, then the pump(s) and the blower automatically
activate to provide freeze protection. The pump(s) and blower will run either continuously or periodically depending on conditions.
Clean-up Cycle (optional)
When a pump or blower is turned on by a button press, a clean-up cycle begins 30 minutes after the pump or blower is turned o or
times out. The pump and the ozone generator will run for 30 minutes or more, depending on the system. On some systems, you can
change this setting (See the Preferences section on Page 11).

6
This navigation guide corresponds with the TP500S Control Panel (designed for BP systems) by Balboa Water Group. 3030 Airway Ave, Costa Mesa, CA 92626. (714) 384-0384. © Balboa Water
Group. All rights reserved. Information compiled by Viking Spas. 2725 Prairie St SW, Grand Rapids, MI 49519. www.vikingspas.com. (616) 248-7800. [email protected]. © 2022 Viking Spas, Inc
Show and Set Time-of-Day
Setting the time-of-day is important for determining ltration times and other background features. When in the TIME menu, SET TIME
will ash on the display if no time-of-day is set in the memory. 24-hour time display can be set under the PREF menu (See Page 11).
If power is interrupted to your spa, time-of-day is not stored. The system will still operate and all other user settings will be stored. If
lter cycles are required to run at a particular time of day, resetting the clock will return the lter times to the actual
programmed periods.
When your spa starts up, it defaults to 12:00 Noon, so another way to get lter times back to normal is to start up the spa at noon
on any given day. SET TIME will still ash in the TIME Menu until the time is actually set, but since the spa started at noon, the lter
cycles will run as programmed.

7
This navigation guide corresponds with the TP500S Control Panel (designed for BP systems) by Balboa Water Group. 3030 Airway Ave, Costa Mesa, CA 92626. (714) 384-0384. © Balboa Water
Group. All rights reserved. Information compiled by Viking Spas. 2725 Prairie St SW, Grand Rapids, MI 49519. www.vikingspas.com. (616) 248-7800. [email protected]. © 2022 Viking Spas, Inc
Filter Cycle 2 - Optional Filtration
Filter Cycle 2 is OFF by default.
It is possible to overlap Filter Cycle 1 and Filter Cycle 2, which
will shorten overall ltration by the overlap amount.
Purge Cycles
In order to maintain sanitary conditions, secondary pumps and/
or a blower will purge water from their respective plumbing by
running briey at the beginning of each lter cycle.
If Filter Cycle 1 is set for 24 hours, enabling Filter Cycle 2 will
initiate a purge when Filter Cycle 2 is programmed to begin.
Adjusting Filtration
Main Filtration
Filter cycles are set using a start time and a duration. Start time is indicated by an “A” or “P” in the top right corner of the display.
Duration has no “A” or “P” indication. Each setting can be adjusted in 15-minute increments. The panel calculates the end time and
displays it automatically.

8
This navigation guide corresponds with the TP500S Control Panel (designed for BP systems) by Balboa Water Group. 3030 Airway Ave, Costa Mesa, CA 92626. (714) 384-0384. © Balboa Water
Group. All rights reserved. Information compiled by Viking Spas. 2725 Prairie St SW, Grand Rapids, MI 49519. www.vikingspas.com. (616) 248-7800. [email protected]. © 2022 Viking Spas, Inc
Temperature and Temp Range
Adjusting the Set Temperature
When using a panel with Up and Down buttons (Temperature buttons), pressing Up or Down will cause the temperature to ash.
Pressing a Temperature button again will adjust the set temperature in the direction indicated on the button. When the topside control
stops ashing, the spa will heat to the new set temperature when required.
If a Temperature button is pressed and held when the temperature is ashing, the temperature will continue to change until the
button is released.
Dual Temperature Ranges
This system incorporates two temperature range settings with independent set temperatures. The High Range designated in the dis-
play by a thermometer and an “up” arrow, and the Low Range designated in the display by a thermometer and “down” arrow.
These ranges can be used for various reasons, with a common use being a “ready to use” setting vs. a “vacation” setting.
The ranges are chosen using the menu structure below. Each range maintains its own set temperature as programmed by
the user. This way, when a range is chosen, the spa will heat to the set temperature associated with that range.
For example:
High Range can be set between 80°F and 104°F
Low Range can be set between 50°F and 99°F
Freeze Protection is active in either range.
For additional heating control information See Page 9.

9
This navigation guide corresponds with the TP500S Control Panel (designed for BP systems) by Balboa Water Group. 3030 Airway Ave, Costa Mesa, CA 92626. (714) 384-0384. © Balboa Water
Group. All rights reserved. Information compiled by Viking Spas. 2725 Prairie St SW, Grand Rapids, MI 49519. www.vikingspas.com. (616) 248-7800. [email protected]. © 2022 Viking Spas, Inc
Mode - Ready and Rest
In order for the spa to heat, a pump needs to circulate water through the heater. The pump that performs this function is
known as the “primary pump.” The primary pump is a 2-Speed Pump 1.
Ready Mode (indicated by ) will circulate water periodically, using Pump 1 Low, in order to maintain a constant water temperature,
heat as needed, and refresh the temperature display. This is known as “polling.”
Rest Mode (indicated by ) will only allow heating during programmed lter cycles. Since polling does not occur, the temperature
display may not show a current temperature until the primary pump has been running for a minute or two.
Ready-in-Rest Mode
appears in the display if the spa is in Rest Mode and the Jets button is pressed. It is assumed that the spa is being used and will
heat to set temperature. The primary pump will run until set temperature is reached, or 1 hour has passed. After 1 hour, the System
will revert to Rest Mode.

10
This navigation guide corresponds with the TP500S Control Panel (designed for BP systems) by Balboa Water Group. 3030 Airway Ave, Costa Mesa, CA 92626. (714) 384-0384. © Balboa Water
Group. All rights reserved. Information compiled by Viking Spas. 2725 Prairie St SW, Grand Rapids, MI 49519. www.vikingspas.com. (616) 248-7800. [email protected]. © 2022 Viking Spas, Inc
Restricting Operation
The control can be restricted to prevent unwanted use or temperature adjustments. Locking the panel prevents the controller from
being used, but all automatic functions are still active. Locking the Temperature allows Jets and other features to be used, but the Set
Temperature and other programmed settings cannot be adjusted.
Temperature Lock allows access to a reduced selection of menu items. These include Set Temperature, FLIP, LOCK, UTIL, INFO and
FALT LOG.
Unlocking
This Unlock sequence may be used from any screen that may be displayed on a restricted panel.
NOTE: If the panel has 2 Temperature buttons (Warm and Cool), the ONLY button that will work in the Unlock Sequence is the Warm
button (up arrow).
The temperature will not unlock if the Unlock sequence is done while the panel is displaying “LOCK”.

11
This navigation guide corresponds with the TP500S Control Panel (designed for BP systems) by Balboa Water Group. 3030 Airway Ave, Costa Mesa, CA 92626. (714) 384-0384. © Balboa Water
Group. All rights reserved. Information compiled by Viking Spas. 2725 Prairie St SW, Grand Rapids, MI 49519. www.vikingspas.com. (616) 248-7800. [email protected]. © 2022 Viking Spas, Inc
Preferences
F / C (Temp Display)
Change the temperature between Fahrenheit and Celsius.
12 / 24 (Time Display)
Change the clock between 12 hr and 24 hr display.
RE-MIN-DERS (Reminders)
Turn the display of reminder messages (like “Clean Filter”) On or O.
Note: Reminders continue to run in the background even when not displayed. So turning the display of Reminders On or O does
not reset any Reminder counts.
CLN-UP (Cleanup)
Cleanup Cycle Duration is not always enabled, so it may not appear. When it is available, set the length of time Pump 1 will run after
each use. 0-4 hours are available.
M8
(This message may not appear on all systems.) On systems that have M8, it is enabled by default. It can be disabled (or re-enabled)
here. M8 reduces polling intervals when the water temperature in the spa is steady.

12
This navigation guide corresponds with the TP500S Control Panel (designed for BP systems) by Balboa Water Group. 3030 Airway Ave, Costa Mesa, CA 92626. (714) 384-0384. © Balboa Water
Group. All rights reserved. Information compiled by Viking Spas. 2725 Prairie St SW, Grand Rapids, MI 49519. www.vikingspas.com. (616) 248-7800. [email protected]. © 2022 Viking Spas, Inc
Utilities and Information
INFO (System Information sub-menu)
The System Information Menu displays various settings and identication of the particular system.
SSID (Software ID)
Displays the software ID number for the System.
MODL (System Model)
Displays the Model Number of the System.
SETP (Current Setup)
Displays the currently selected Conguration Setup Number.
Heater Voltage (Feature not used on CE rated systems.)
Displays the operating voltage congured for the heater.
Heater Wattage as Congured in Software (CE Systems Only.)
Displays a heater kilowatt rating as programmed into the control system software (1-3 or 3-6).
H _ (Heater Type)
Displays a heater type ID number.
SW _ (Dip Switch Settings)
Displays a number that represents the DIP switch positions of S1 on the main circuit board.
PANL (Panel Version)
Displays a number of the software in the topside control panel.
GFCI (GFCI Test)
(Feature not available on CE rated systems.)
GFCI Test is not always enabled, so it may not appear. This screen allows the GFCI to be tested manually from the panel and can be
used to reset the automatic test feature. If the GFCI Test Feature is reset, the device will trip within 7 days (See Page 17).
A / B (A/B Sensor Temperatures)
When this is set to On, the temperature display will alternate to display temperature from Sensor A and Sensor B in the
heater.
FALT LOG (Fault Log)
The Fault Log is a record of the last 24 faults that can be
reviewed by a service tech.
DEMO (Demo Mode)
Demo Mode is not always enabled, so it may not appear. This is designed to operate several devices in a sequence in order
to demonstrate the various features of a particular hot tub.

13
This navigation guide corresponds with the TP500S Control Panel (designed for BP systems) by Balboa Water Group. 3030 Airway Ave, Costa Mesa, CA 92626. (714) 384-0384. © Balboa Water
Group. All rights reserved. Information compiled by Viking Spas. 2725 Prairie St SW, Grand Rapids, MI 49519. www.vikingspas.com. (616) 248-7800. [email protected]. © 2022 Viking Spas, Inc
Utilities

14
This navigation guide corresponds with the TP500S Control Panel (designed for BP systems) by Balboa Water Group. 3030 Airway Ave, Costa Mesa, CA 92626. (714) 384-0384. © Balboa Water
Group. All rights reserved. Information compiled by Viking Spas. 2725 Prairie St SW, Grand Rapids, MI 49519. www.vikingspas.com. (616) 248-7800. [email protected]. © 2022 Viking Spas, Inc
Forcing the GFCI Trip Test
The installer can cause the GFCI Trip Test to occur sooner by initiating it using the above menu.
The GFCI should trip within a few seconds and the spa should shut down. If it does not, shut down the power and manually verify
that a GFCI breaker is installed and that the circuit and spa are wired correctly. Verify the function of the GFCI with its own test
button. Restore power to the spa and repeat the GFCI Trip Test.
Once the GFCI is tripped by the test, reset the GFCI and the spa will operate normally from that point. You can verify a successful test
by navigating to the above menu. PASS should appear after a temp button is pressed from the GFCI screen. The end-user must be
trained to expect this one-time test to occur and how to properly reset the GFCI.
Warning: If freezing conditions exist, a GFCI should be reset immediately or spa damage could result. The end user should
always be trained to test and reset the GFCI on a regular basis.
Utilities - GFCI Test Feature
A GFCI is an important safety device and is required for hot tub installation.
Your spa may be equipped with a GFCI Protection feature. (UL rated systems only.) If your spa has this feature enabled by the
manufacturer, the GFCI Trip Test must occur to allow proper spa function.
Within 1 to 7 days after startup, the spa will trip the GFCI to test it. (The number of days is factory programmed.) The GFCI must be
reset once it has tripped. After passing the GFCI Trip Test, any subsequent GFCI trips will indicate a ground fault or other unsafe
condition and the power to the spa must be shut o until a service person can correct the problem.

15
This navigation guide corresponds with the TP500S Control Panel (designed for BP systems) by Balboa Water Group. 3030 Airway Ave, Costa Mesa, CA 92626. (714) 384-0384. © Balboa Water
Group. All rights reserved. Information compiled by Viking Spas. 2725 Prairie St SW, Grand Rapids, MI 49519. www.vikingspas.com. (616) 248-7800. [email protected]. © 2022 Viking Spas, Inc
Utilities - Fault Log
The Fault Log stores up to 24 events in memory and they can be reviewed under the Fault Log Menu.
Each event captures a Message Code, how many days have passed since the fault, time of the fault, the set temperature during the
fault, and Sensor A and B temperatures during the fault.
See following pages for various Message Codes and denitions.

16
This navigation guide corresponds with the TP500S Control Panel (designed for BP systems) by Balboa Water Group. 3030 Airway Ave, Costa Mesa, CA 92626. (714) 384-0384. © Balboa Water
Group. All rights reserved. Information compiled by Viking Spas. 2725 Prairie St SW, Grand Rapids, MI 49519. www.vikingspas.com. (616) 248-7800. [email protected]. © 2022 Viking Spas, Inc
Priming Mode – MO19
Each time the spa is powered up, it will enter Priming Mode. The purpose of Priming Mode is to allow the user to run each pump
and manually verify that the pumps are primed (air is purged) and water is owing. This typically requires observing the output of
each pump separately, and is generally not possible in normal operation. Priming Mode lasts 4 minutes, but you can exit it earlier by
pressing any Temp button. The heater is not allowed to run during Priming Mode.
General Messages
Water Temperature is Unknown
After the pump has been running for 1 minute, the temperature will be displayed.
Too Cold - Freeze Protection
A potential freeze condition has been detected and all pumps and blower are activated, either one at a time, or all at once, depend-
ing on how your system was built. All pumps are ON for at least 4 minutes after the potential freeze condition has ended, or when
the aux freeze switch opens.
In some cases, pumps may turn on and o and the heater may operate during Freeze Protection. This is an operational message, not
an error indication.
Water is too Hot (OHS) – MO29
One of the water temp sensors has detected spa water temp 110°F (43.3°C) and spa functions are disabled. System will auto reset
when the spa water temp is below 108°F (42.2°C). Check for extended pump operation or high ambient temp.
J29 Warning – MO44
J29 is typically used as a Heater Disable input. As such, it should not typically be shorted at power-up. This message appears if J29 is
shorted at power-up.
M0XX numbers are Message Codes (See Page 18).
* This message can be reset from the topside panel with any button press.

17
This navigation guide corresponds with the TP500S Control Panel (designed for BP systems) by Balboa Water Group. 3030 Airway Ave, Costa Mesa, CA 92626. (714) 384-0384. © Balboa Water
Group. All rights reserved. Information compiled by Viking Spas. 2725 Prairie St SW, Grand Rapids, MI 49519. www.vikingspas.com. (616) 248-7800. [email protected]. © 2022 Viking Spas, Inc
Heater Flow is Reduced (HFL) – MO16
There may not be enough water ow through the heater to carry the heat away from the heating element. Heater start up will begin
again after about 1 min (See “Flow Related Checks” below).
Heater-Related Messages
Heater Flow is Reduced (LF)* – MO17
There is not enough water ow through the heater to carry the heat away from the heating element and the heater has been
disabled (See “Flow Related Checks” below). After the problem has been resolved, you must press any button to reset and begin
heater start up.
Heater may be Dry (dr)* – MO28
Possible dry heater, or not enough water in the heater to start it. The spa is shut down for 15 min. Press any button to reset the
heater start-up (See “Flow Related Checks” below).
Heater is Dry* – MO27
There is not enough water in the heater to start it. The spa is shut down. After the problem has been resolved, you must press any
button to reset and restart heater start up (See “Flow Related Checks” below).
Heater is too Hot (OHH)* – MO30
One of the water temp sensors has detected 118°f (47.8°C) in the heater and the spa is shut down. You must press any button to
reset when water is below 108°f (42.2°C). See “Flow Related Checks” below.
Flow-Related Checks
Check for low water level, suction ow restrictions, closed valves, trapped air, too many closed jets and pump prime.
On some systems even when spa is shut down, some equipment may occasionally turn on to continue monitoring temperature or if
freeze protection is needed.
* This message can be reset from the topside panel with any button press.
A Reset Message may Appear with other Messages
Some errors may require power to be removed and restored.

18
This navigation guide corresponds with the TP500S Control Panel (designed for BP systems) by Balboa Water Group. 3030 Airway Ave, Costa Mesa, CA 92626. (714) 384-0384. © Balboa Water
Group. All rights reserved. Information compiled by Viking Spas. 2725 Prairie St SW, Grand Rapids, MI 49519. www.vikingspas.com. (616) 248-7800. [email protected]. © 2022 Viking Spas, Inc
Memory Failure - Checksum Error* – MO22
At Power-Up, the system has failed the Program Checksum Test. This indicates a problem with the rmware (operation program) and
requires a service call.
System-Related Messages
Memory Warning - Persistent Memory Reset* – MO21
Appears after any system setup change. Contact your dealer or service organization if this message appears on more than one
power-up, or if it appears after the system has been running normally for a period of time.
Conguration Error – Spa will not Start Up
Contact your dealer or service organization.
GFCI Failure - System Could Not Test/Trip the GFCI – MO36
NORTH AMERICA ONLY. May indicate an unsafe installation. Contact your dealer or service organization.
Memory Failure - Clock Error* – MO20
Contact your dealer or service organization.
* This message can be reset from the topside panel with any button press.

19
This navigation guide corresponds with the TP500S Control Panel (designed for BP systems) by Balboa Water Group. 3030 Airway Ave, Costa Mesa, CA 92626. (714) 384-0384. © Balboa Water
Group. All rights reserved. Information compiled by Viking Spas. 2725 Prairie St SW, Grand Rapids, MI 49519. www.vikingspas.com. (616) 248-7800. [email protected]. © 2022 Viking Spas, Inc
A Pump Appears to be Stuck ON – MO34
Water may be overheated. POWER DOWN THE SPA. DO NOT ENTER THE WATER. Contact your dealer or service organization.
System-Related Messages
A Pump Appears to have been Stuck ON when spa was last powered - MO35
POWER DOWN THE SPA. DO NOT ENTER THE WATER. Contact your dealer or service organization.
The water level is too low
Some systems have a water level detect, and this message appears if it detects that the water level is too low.
* This message can be reset from the topside panel with any button press.
Sensor Balance is Poor – MO15
The temperature sensors MAY be out of sync by or 3°F. Call your dealer.
Sensor-Related Messages
Sensor Balance is Poor* – MO26
The temperature sensors ARE out of sync. The Sensor Balance is Poor fault has been established for at least 1 hour. Call your dealer.
Sensor Failure – Sensor A: MO31, Sensor B: MO32
A temperature sensor or sensor circuit has failed. Call your dealer.

20
This navigation guide corresponds with the TP500S Control Panel (designed for BP systems) by Balboa Water Group. 3030 Airway Ave, Costa Mesa, CA 92626. (714) 384-0384. © Balboa Water
Group. All rights reserved. Information compiled by Viking Spas. 2725 Prairie St SW, Grand Rapids, MI 49519. www.vikingspas.com. (616) 248-7800. [email protected]. © 2022 Viking Spas, Inc
Appears on a regular schedule, e.g. every 7 days
Check pH with a test kit and adjust pH with the appropriate chemicals.
Reminder Messages
General Maintenance Helps
The display of Reminder Messages can be suppressed by using the PREF Menu (See Page 12). Reminder Messages can be chosen
individually by the Manufacturer. They may be disabled entirely, or there may be a limited number of reminders on a specic model.
The frequency of each reminder (e.g. 7 days) can be specied by the Manufacturer. Press a Temperature button to reset a displayed
reminder message.
Appears on a regular schedule, e.g. every 7 days
Check sanitizer level and other water chemistry with a test kit and adjust with the appropriate chemicals.
Appears on a regular schedule, e.g. every 30 days
Clean the lter media as instructed by the manufacturer (See HOLD on Page 9).
Alternates with temperature or normal display.
Alternates with temperature or normal display.
Alternates with temperature or normal display.
Appears on a regular schedule, e.g. every 30 days
The Ground Fault Circuit Interrupter (GFCI) or Residual Current Device (RCD) is an important safety device and must be tested on a
regular basis to verify its reliability.
Every user should be trained to safely test the GFCI or RCD associated with the hot tub installation.
A GFCI or RCD will have a TEST and RESET button on it that allows a user to verify proper function.
Warning: If freezing conditions exist, a GFCI or RCD should be reset immediately or spa damage could result. The end user
should always trained to test and reset the GFCI or RCD on a regular basis.
Alternates with temperature or normal display.
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