Spa Error Codes - For Most Spa & Hot Tubs
Check the error code on the Spa Touch pad and check our list below. Contact us for more info, or book a service call.

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