Spa side Error Codes

Applied Computer Controls (ACC)

* CoLd : Temp in heater housing is below 40° F. Low speed / circ pump will operate continuously until the temp rises above 45° F.
* OH : Over heat. Spa temp greater than 108°.
* HLoH : Hi Limit Over Heat. Hi limit sensor is disconnected, shorted, or spa temp is above 112° F.
* SEoP : Sensor open or disconnected. Heater disabled but spa operational.
* SESH : Sensor short, nonfunctional. Heater disabled but spa operational.
* PSoC : Pressure switch open with circulation pump.
* PSoL : Pressure switch open with low pump.
* PSoH : Pressure switch open with high pump.
* ToE : Time out error. Rare system error. Spa unusable. Contact ACC.

Balboa Error Codes

* pd : Power supply, unit running on battery backup
* OH : Sensors reading 112-118 Degrees
* OHH : Overheat. Spa has shut down. One sensor has detected 118º
* OHS : Overheat. Spa has shut down. One sensor has detected 110º
* Flo : Improper flow or pressure switch malfunction
* Cool : Water temp 20 degrees below set point
* ICE : Potential freeze condition has been detected
* Sn1 : Hi-limit sensor malfunction
* Sn3 : Temp sensor malfunction
* Sna : Spa is shut down. Sensor plugged into jack A is not working
* Snb : Spa is shut down. Sensor plugged into jack B is not working
* SnS : Sensors out of balance. If alternating with temp, may be temporary condition. If display shows only this message (blinking) spa is shut down
* HFL : Substantial difference between temperature sensors detected. Could indicate a flow problem
* LF : Persistent low flow problems. (Displays on the 5th occurrence of "HFL" message with 24 hours). Heater is shut down, but other spa functions run normally.
* dr : Inadequate water detected in heater.
* dry : Inadequate water detected in heater. (Displays on third occurrence of "dr" message). Spa is shut down.
* Pr : When spa is first actuated, it will go into Priming Mode
* ILOC : Interlock failure
* --- : Unknown water temperature. (Displays when first powered up after refill)
* Std : Spa operating in Standard Mode.
* Ecn : Spa operating in Economy Mode.
* SE : Spa operating in Standard-in-Economy Mode.
* ILOC : Interlock failure - possible pump or ozone spike

Brett Aqualine Error Codes

* OH : Temp exceeds 118 degrees
* Fr : Freeze condition - temp below 40 degrees
* FL : Pressure switch failure
* EO : Shorted temp sensor
* E1 : Open temp sensor
* E2 : Shorted hi-limit sensor
* E3 : Open hi-limit sensor
* E4 : Shorted flow switch
* E7 : Improper electrical connection

CTI Error Codes

* thl/39 : On startup indicates temperature probe problem
* th2/current temperature : On startup indicates temperature probe problem
* th3/39 : On startup indicates water temperature less than 39° F
* OH : Overheating, water over 112° F. System will restart when temp. drops
* hot : Overheating, water over 112° F. System will restart when temp. drops
* HL : High limit switch tripped

Dream Maker Error Codes

* OH : Overheat 108° F, spa is deactivated. Do not enter the water
* FL : Flow. Pressure switch is not working
* SN : Non functional high temperature sensor. Heater is deactivated
* F2 : 4 hours daily filtration
* F4 : 8 hours daily filtration
* F6 : 12 hours daily filtration
* FC : continuous filtration

EasyPak Error Codes

* C : Celsius
* CL : Current Time of Day
* ECdu : Economy Mode Duration
* Econ : Economy Mode Turn On
* F : Fahrenheit
* Fldu : Filter Cycle Duration
* Flon : Filter Cycle Turn On
* FLC : Pressure Switch Alarm
* FLO : Pressure Switch Alarm
* FrEE : Freeze Protection Alarm
* HL : High Temperature Alarm
* Loc : Panel / Keypad Locked
* PrH : Temperature Sensors Alarm
* Prr : Temperature Sensors Alarm
* Tu : Temperature Set Celsius
* Tu : Temperature Set Fahrenheit

Gecko Error Codes

* FLO : Pressure switch failure, switch open
* FLC : Pressure switch failure, switch closed
* Prr : Temp sensor failure
* Prh : Hi-limit sensor failure
* HL : Sensor measuring 119 degrees
* FrE : Possible freeze condition detected

Hercules Error Codes

* OH : Spa temp exceeds acceptable limits
* FLO : Flow problem
* ICE : Freeze condition detected
* SN1 : Hi-limit sensor failure
* SN2 : Temp sensor failure


Hurricane Error Codes

* PS : Flow or pressure switch failure
* SH : Shorted sensor
* OP : Open Sensor Degrees
* LO : Temp below 60 degrees - freeze
* HL : Temp above 118 degrees
* OH : Spa temp exceeds acceptable limits
* FLO : Flow problem
* ICE : Freeze condition detected
* SN1 : Hi-limit sensor failure
* SN2 : Temp sensor failure

Hurricane Error Codes

* C : Celsius
* CL : Current Time of Day
* ECdu : Economy Mode Duration
* Econ : Economy Mode Turn On
* F : Fahrenheit
* Fldu : Filter Cycle Duration
* Flon : Filter Cycle Turn On
* FLC : Pressure Switch Alarm
* FLO : Pressure Switch Alarm
* FrEE : Freeze Protection Alarm
* HL : High Temperature Alarm
* Loc : Panel / Keypad Locked
* PrH : Temperature Sensors Alarm
* Prr : Temperature Sensors Alarm
* Tu : Temperature Set Celsius
* Tu : Temperature Set Fahrenheit

Jacuzzi Error Codes

* OH : Overheat Protection (Heater is deactivated, pumps low speed is activated)
* COOL : Spa water is more than 20° F cooler than the temperature set point
* FLO* : Flow Switch (heater is deactivated. Pump may also be deactivated)
* Hold : Panel sensors have been pressed too many times in a short period of time
* HOT : Circuit Board temperature has exceeded acceptable limit
* ICE : Freeze protection. No action is necessary
* I CE2 : Freeze protection. No action is necessary
* PnL : Communication between the panel and circuit board is faulty
* ---- : "Watchdog" (spa is deactivated) A problem has been detected
* Sn1 : Open sensor (heater is deactivated) or Shorted sensor (spa is deactivated)
* Sn3 : Open or shorted sensor ( heater disabled)
* FLO2 : Closed or shorted flow switch on system startup

Pinnacle Pack Error Codes

* OH : Temperature has exceeded 110° F
* SN : Sensor failure
* FL : Flow/pressure switch stuck in closed position

Spa Builders Support Error Codes

* Sn1 : Nonfunctional high temperature sensor. Heater deactivated
* Sn2 : Nonfunctional temperature sensor. Heater deactivated
* FL1 : Water flow problem, pressure switch malfunction. Check for low water level and ensure pump is primed. Check for clogged filter
* FL2 : Pressure switch problem. Switch closed while pump is deactivated
* COL : Cool condition. If water temp drops 20ºF below set tempe, low speed pump and heater activates to bring temp within 15º of set temp
* ICE : Freeze condition. 55ºF detected. Low speed pump and heater will activate until spa reaches 65ºF
* OH : High temperature condition, has reached 110ºF. Low speed pump (and air blower if equipped) will activate to lower temp
* --- : "Watchdog". Water temp has reached 118ºF. Entire system is disabled. Contact qualified service technician

Spa Quip Error Codes

* err 1 (H20) : Prime Failed
* err 3 : Stuck Button
* err 4 : No Water Sensor
* err 5 : Overtemperature
* err 6 : Thermal Cut Out Tripped
* err 7 : Stuck Relay
* err 8 : No Temperature Data
* 01 : Stuck Button
* 02 : No Controller Data
* 03 : Temperature Sensor
* 04 : Water Sensor
* 05 : Spa Over Temperature
* 06 : Heater Thermal Cut Out
* 07 : Stuck Heater Relay
* 09 : Water Prime Failed

Sundance Error Codes

* ILOC : Interlock failure - possible pump or ozone spike
* FLO : Pressure switch malfunction
* Hold : Panel buttons pressed to many times to quickly
* HOT : PCB temperature above acceptable limit - air blower on
* ICE : Potential freeze condition
* Pnl : Communication between PCB and panel interrupted
* Sn1 : Hi-limit sensor failure
* Sn3 : Temp sensor failure
* --- : "Watchdog" (spa is deactivated) A problem has been detected (most likely a bad temp or hi-limit sensor/probe)

Vita Error Codes

* HiLi : Water temp over acceptable limit
* BJ2P : Pump/Blower purge - normal condition
* FP : Freeze protect-temp under acceptable condition
* SS=0;SS=S;LS=O;LS=S : Multiple causes; open sensors, bad connection to panel, improper voltage, etc.


Alphabetical Error Code List
* * * (3 flashing dots under temp display) Flow/Pressure switch either Open or Closed Circuit
* * * (as above, plus illuminated red LED on PCB) High Limit Fault
- - - - , - - - 'Watchdog' - 48C reached, electronic fault, shuts system down. Major Fault
- - Temperature unknown - displayed at power up for 2 minutes - not a fault
- 01 Hi-Limit fault
- 02 Temp sensor fault
- 03 Flow/pressure switch open
- 04 Flow/Pressure switch closed
- 07 Hi-limit fault
--- "Watchdog" (spa is deactivated) A problem has been detected (most likely a bad temp or hi-limit sensor/probe)
--- "Watchdog". Water temp has reached 118ºF. Entire system is disabled. Contact qualified service technician
--- Unknown water temperature. (Displays when first powered up after refill)
01 Stuck Button
02 No Controller Data
03 Temperature Sensor
04 Water Sensor
05 Spa Over Temperature
06 Heater Thermal Cut Out
07 Stuck Heater Relay
09 Water Prime Failed
131 Hi-limit
BJ2P Hi-Limit - water temp too high
BJ2P Pump/Blower purge - normal condition
C Celsius
C4.4 Hi- Limit
CE 01 Stuck Touchpad button
CE 02 No controller Data Communication
CE 03 Temperature sensor fault
CE 04 Water Sensor/Pressure switch fault
CE 05 Over Temperature Condition
CE 06 High Limit manual reset Klixon tripped
CE 07 Stuck Relay
CE 08 Temp Sensor Fault -( Spaquip Digital 2000 MK1 sensor)
CE 09 Water Prime Fault - Lack of water
CL Current Time of Day
COL Cool condition. If water temp drops 20ºF below set tempe, low speed pump and heater activates to bring temp within 15º of set temp
COOL Spa water is more than 20° F cooler than the temperature set point
Cd, CLd Freeze Condition
CoLd Temp in heater housing is below 40° F. Low speed / circ pump will operate continuously until the temp rises above 45° F.
Cool Water temp 20 degrees below set point
Cool, COOL, COL Water is 11C below set point - not a fault
DR, dr, dy Heater dry - insufficient water fault
E### pH probe out of calibration
E0 Short circuit temperature sensor
E1 Open circuit temperature sensor
E2 short circuit/closed high limit sensor
E3 Open circuit high limit sensor
E4 Short circuit/closed pressure/flow switch
E7 Improper electrical connection
ECdu Economy Mode Duration
EO Shorted temp sensor
Ecn Spa operating in Economy Mode.
Econ Economy Mode Turn On
Er0, Er1 Temperature sensor faulty
Er2, Er3 Hi-Limit fault
Er4 Flow/Pressure switch short circuit
Err Software Program Fault
Error 3 Stuck touchpad button
Error 4 Water sensor fault
Error 5 Over temperature
Error 6 Klixon Tripped - over temp
Error 7 Stuck Relay
Error 8 Temperature sensor fault
F Fahrenheit
F2 4 hours daily filtration
F4 8 hours daily filtration
F6 12 hours daily filtration
FC continuous filtration
FL Pressure switch or flow switch failure
FL1 Water flow problem, pressure switch malfunction. Check for low water level and ensure pump is primed. Check for clogged filter
FL2 Pressure switch problem. Switch closed while pump is deactivated
FLC Pressure Switch Alarm
FLC, FL2 Flow/pressure switch closed circuit - debris in switch, perforated diaphragm, faulty
FLO (flashing) Flow switch open circuit - Sundance/Spa Builders/ Balboa
FLO Pressure switch or Flow Switch malfunction (heater and/or pump may be deactivated)
FLO, Flo, FL1 Flow/pressure switch open circuit - lack of flow or pressure or for Sundance/Spa Builders/Balboa - Flow switch is closed circuit
FLO2 Closed or shorted flow switch on system startup
FP Freeze protect-temp under acceptable condition
Fldu Filter Cycle Duration
Flo Improper flow or pressure switch malfunction
Flon Filter Cycle Turn On
Fr Freeze condition - temp below 40 degrees
FrE, Fr, FP Freeze condition detected
FrEE Freeze Protection Alarm
H2O Water Prime Fault - lack of water
HFL Substantial difference between temperature sensors detected. Could indicate a flow problem
HL High Temperature Alarm
HL Temp above 118 degrees
HL, HFL, HH, OHH High limit sensor reading 45-48C, or above - check flow
HLoH Hi Limit Over Heat. Hi limit sensor is disconnected, shorted, or spa temp is above 112° F.
HOT Circuit Board temperature has exceeded acceptable limit (air blower may be on)
HiLi, HLEr Water temperature above acceptable range
Hold Panel buttons pressed too many times too quickly
I CE2 Freeze protection. No action is necessary
ICE Freeze condition. 55ºF detected. Low speed pump and heater will activate until spa reaches 65ºF
IC Freeze Condition
ILOC Interlock failure - possible pump or ozone spike - posibly caused by faulty ozonators, pumps and equipment
L1 Panel Lock
L2 Panel Lock
LF Low Flow Fault
LF Persistent low flow problems. (Displays on the 5th occurrence of "HFL" message with 24 hours). Heater is shut down, but other spa functions run normally.
LO Freeze Condition
LOC Control Panel functions Locked
LS=0, LS=S Multiple causes - open circuit sensor, faulty panel connection, improper voltage, etc
Loc Panel / Keypad Locked
OH High temperature condition, has reached 110ºF. Spa may be partially deactivated or low speed pump (and air blower if equipped) may activate to lower temp
OH, OHS, oH Overheat Condition 43-45C
OHH Overheat. Spa has shut down. One sensor has detected 118º
OHS Overheat. Spa has shut down. One sensor has detected 110º
OP Open circuit sensor
PLUG Sundance/Spa Builders Service Technician's Test Plug accidentally left connected to PCB
PS Flow or pressure switch failure
PSoC Pressure switch open with circulation pump.
PSoH Pressure switch open with high pump.
PSoL Pressure switch open with low pump.
PnL Communication between the panel and circuit board is faulty
Pr System Priming - When spa is first actuated, it will go into Priming Mode
PrH Temperature Sensors Alarm
Prh Hi-limit sensor failure
Prr Temperature sensors alarm
SA, SnA, SnH, Sb, Snb, Snt Sensor Open Circuit or faulty
SnH Hi Limit circuit open or faulty
SnT Temp sensor circuit open or faulty
SE Spa operating in Standard-in-Economy Mode.
SESH Sensor Short Circuit
SESH Sensor short, nonfunctional. Heater disabled but spa operational.
SEoP Sensor Open Circuit
SEoP Sensor open or disconnected. Heater disabled but spa operational.
SH Short circuit sensor
SN Non functional high temperature sensor. Heater is deactivated
SN Sensor failure
SN1 Hi-limit sensor failure
SN2 Temp sensor failure
SS=0;SS=S; Multiple causes; open sensors, bad connection to panel, improper voltage, etc.
Sn Sensors out of balance
Sn1 Hi-limit sensor malfunction
Sn2 Nonfunctional temperature sensor. Heater deactivated
Sn2 Temperature sensor fault
Sn3 Temp sensor failure
SnS Sensors out of balance. If alternating with temp, may be temporary condition. If display shows only this message (blinking) spa is shut down
Sna Spa is shut down. Sensor plugged into jack A is not working
Snb Spa is shut down. Sensor plugged into jack B is not working
Std Spa operating in Standard Mode.
ToE Time out error. Rare system error. Spa unusable.
Tu Temperature Set Celsius
Tu Temperature Set Fahrenheit
dr Inadequate water detected in heater.
dry Inadequate water detected in heater. (Displays on third occurrence of "dr" message). Spa is shut down.
err 1 (H20) Prime Failed
err 3 Stuck Button
err 4 No Water Sensor
err 5 Overtemperature
err 6 Thermal Cut Out Tripped
err 7 Stuck Relay
err 8 No Temperature Data
hot Overheating, water over 112° F. System will restart when temp. drops
pd Power supply interrupted, unit running on battery backup
th2/current temperature On startup indicates temperature probe problem
th3/39 On startup indicates water temperature less than 39° F


Flashing Light Error Codes
1 flash - 3 second gap High Limit fault
2 flashes - 3 second gap Pressure/Flow switch short circuit
3 flashes - 3 second gap Pressure/Flow switch open circuit
4 flashes - 3 second gap Open circuit Sensor(s)
Flash - 1 second on, 1 second off Same as OH
Flash - briefly OFF once per second Same as Sn1 or Sn3
Flash - briefly ON once per second Same as FLC
Blinking Power Indicator Light - Hydromate High Limit tripped or, sensor fault
1 flash per second - onga 4352,
53, 95, etc Pressure switch open circuit - could also be motor, or motor thermal overload
3 flashes per second - onga 4352,
53, 95, etc Electronic fault - sensor (most common cause) or PCB
Green flashes - Spaquip Pulsar/2095 series Water sensor fault - lack of water
Red/Green alternate flashes Temperature sensor fault, open circuit, or high limit tripped - push Reset Rod