Spa Error Codes & Messages - For Most Spa & Hot Tubs

Check the error code & error messages on Spa Touch Pad Control Panels, then check our list below.

Alphabetical Error Code List

BJ2P Hi-Limit - water temp too high

C4.4 Hi- Limit

Cd, CLd Freeze Condition

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

CoLd spa heater temp below 40F

Cool, COOL, COL Water is 11C below set point - not a fault

DR, dr, dy Heater dry - insufficient water fault

Er0, Er1 Temperature sensor faulty

Er2, Er3 Hi-Limit fault

Er4 Flow/Pressure switch short circuit

Error 3 - Spaquip 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

Err Software Program 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

FLO, Flo, FL1Flow/pressure switch open circuit-lack of flow/pressure 

or for Sundance/Spa Builders/Balboa - Flow switch is closed circuit

FLC, FL2 Flow/pressure switch closed circuit - debris in switch, perforated diaphragm, faulty 

FL Pressure/flow switch failure

FLO (flashing) Flow switch open circuit - Sundance/Spa Builders/ Balboa

FrE, Fr, FP Freeze Condition

HiLi, HLEr Water temperature above acceptable range

HL,HFL,HH,OHH High limit sensor reading 45-48C, or above - check flow

HoldPanel buttons pressed too many times too quickly

HOTPCB thermistor above 45C

H2O Water Prime Fault - lack of water

ICE, ICFreeze Condition

ILOC Interlock failure, also caused by faulty ozonators, pumps and equipment

L FLow Flow Fault

LO Freeze Condition

LOC Control Panel functions Locked

LS=0, LS=S Multiple causes - open circuit sensor, faulty panel connection, improper voltage, etc

L1 Panel Lock

L2 Panel Lock

OH, OHS, oH Overheat Condition 43-45C

OP Open circuit sensor

pd, PdRunning on battery - power supply interrupted

PLUGSundance/Spa Builders Service Technician's Test Plug accidentally left connected to PCB

PnL, nlCommunication disrupted between touchpad and PCB

PrSystem Priming - not a fault

Prh High limit sensor fault

Prr Temperature sensor fault

PS Flow/Pressure switch failure

PSoC,PSoL,PSoH Pressure switch open circuit with Circulating, Low Speed, 

or High speed pumps

SA, SnA, SnH,

Sb, Snb, 

SntSensor Open Circuit or faulty - SnH - Hi Limit, 

SnT - Temp sensor

SEoP Sensor Open Circuit

SESH Sensor Short Circuit

SH Short circuit sensor

Sn, SnS Sensors out of balance

Sn1 High Limit sensor fault

Sn2, Sn3 Temperature sensor fault

SS=0, SS=S Multiple causes - open circuit sensor, faulty panel connection, improper voltage, etc.

To ETime Out Error

- 01 Hi-Limit

- 02 Temp sensor fault

- 03 Flow/pressure switch open

- 04 Flow/Pressure switch closed

- 07 Hi-limit

131 Hi-limit


- - Temperature unknown - displayed at power up for 2 minutes - not a fault

- - - - , - Sundance/Spa Builders - 'Watchdog' - 48C reached, electronic fault, shuts system down. Major Fault

* * * (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 


Spa Controller Brand Error Codes

Balboa Error Codes

pd : Power supply, unit running on battery backup 

OH : Sensors reading 45 Degrees 

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 

ILOC : Interlock failure - possible pump or ozone spike 

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 

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 45 degrees 

FrE : Possible freeze condition detected 

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 


Hurricane Error Codes

PS : Flow or pressure switch failure 

SH : Shorted sensor 

OP : Open Sensor Degrees 

LO : Temp below 4 degrees - freeze 

HL : Temp above 45 degrees 

OH : Spa temp exceeds acceptable limits 

FLO : Flow problem 

ICE : Freeze condition detected 

SN1 : Hi-limit sensor failure 

SN2 : Temp sensor failure 


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 


Brett Error Codes

OH : Temp exceeds 45 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 


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. 


Flashing Light Error Codes

1 flash - 3 second gapHigh Limit fault

2 flashes - 3 second gapPressure/Flow switch short circuit

3 flashes - 3 second gapPressure/Flow switch open circuit

4 flashes - 3 second gapOpen 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 - HydromateHigh Limit tripped or, sensor fault

1 flash per second - onga 4352,53,95,etcPressure switch open circuit - could also be motor, or motor thermal overload

3 flashes per second - onga 4352,53, 95, etcElectronic fault - sensor (most common cause) or PCB

Green flashes - Spaquip Pulsar/2095 seriesWater sensor fault - lack of water

Red/Green alternate flashes Temperature sensor fault, open circuit, or high limit tripped - push Reset Rod


Spa & Hot Tub Error Codes & Messages. Found on Touchpad & Control Panel Key Pads
Spa & Hot Tub Error Codes & Messages. Found on Touchpad & Control Panel Key Pads