Hot Tub Error Codes - Electronic Spa Packs (Control Systems)
Hot Tub Error Codes - Spa Topside Error Messages
1) Hot Tub Error Codes (Alphabetical)
2) Flashing Light Error Codes for Spas
1) Hot Tub Error Codes (Alphabetical)
* * * (3 flashing dots under temp display) | Flow/Pressure switch either Open or Closed Circuit |
* * * (as above, & red LED lit up on board) | High Limit Fault |
| - - - , - - - | ‘Watchdog’ - 48C reached, electronic fault, shuts system down. Major 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), likely a bad temp or hi-limit sensor or water temp has reached 118ºF |
| --- | 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 |
| A1/A2-ER | Aux. system error |
| AOH | Temp in Equipment compartment to high |
| BJ2P | Hi-Limit - water temp too high |
| BJ2P | Pump/Blower purge - normal condition |
| BL-ER | Blower failure |
| C4.4 | Hi- Limit |
| C | Celsius |
| 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 |
| CL | Current Time of Day |
| COL | Cool condition. Water temp 20ºF below set temp. Low speed pump & heater activate |
| Cold | Temp in heater housing is below 40° F. Low speed /circ pump will run until the temp rises above 45° F. |
| Cool, COOL, COL | Water is 11C below set point - not a fault |
| COOL | Spa water is more than 20° F cooler than the temperature set point |
| CP-ER | Circ pump failure |
| DR, dr, dy? | Inadequate water detected in heater. |
| dr | Inadequate flow in heater. |
| dry | Inadequate flow in heater. (Displays on third occurrence of “dr” message) |
| E### | pH probe out of calibration |
| E0 | Short circuit temperature sensor |
| E1 | Open circuit temperature sensor or open temp sensor |
| E2 | Short circuit/closed high limit sensor or shorted hi-limit sensor |
| E3 | Open circuit high limit sensor or open hi-limit sensor |
| E4 | Short circuit/closed pressure/flow switch or shorted flow switch |
| E7 | Improper electrical connection |
| ECdu | Economy Mode Duration |
| Ecn | Spa operating in Economy Mode |
| Econ | Economy Mode Turn On |
| EO | Shorted temp sensor |
| Er0, Er1 | Temperature sensor faulty |
| Er2, Er3 | Hi-Limit fault |
| Er4 | Flow/Pressure switch short circuit |
| err 1 | (H20) Prime Failed |
| err 3 | Stuck Button |
| err 4 | No Water Sensor |
| err 5 | Over temp |
| err 6 | Thermal Cut Out Tripped |
| err 7 | Stuck Relay |
| err 8 | No Temp Data |
| 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 |
| F2 | 4 hours daily filtration |
| F4 | 8 hours daily filtration |
| F6 | 12 hours daily filtration |
| F | Fahrenheit |
| FB-ER | Fiber optic failure |
| FC | continuous filtration |
| FL1 | Flow problem/pressure switch malfunction. Check for low water or clogged filter. Ensure pump is primed. |
| FL2 | Pressure switch problem. Switch closed while pump is deactivated |
| FL | Flow/pressure switch stuck in closed position or pressure switch or flow switch failure |
| FLC, FL2 | Flow/pressure switch closed circuit - debris in switch, perforated diaphragm. |
| FLC | Pressure switch failure, switch closed |
| Fldu | Filter Cycle Duration |
| FLO* | Flow Switch (heater is deactivated. Pump may also be deactivated) |
| FLO, Flo, FL1 | Pressure switch open - lack of pressure OR for Sundance/Spa Builders/Balboa, pressure switch closed |
| FLO2 | Closed or shorted flow switch on system startup |
| FLO (flashing) | Flow switch open circuit - Sundance/Spa Builders/ Balboa |
| FLO | Pressure switch or Flow Switch malfunction (heater and/or pump may be deactivated) |
| Flon | Filter Cycle Turn On |
| FN-ER | Fan failure |
| FP | Freeze protect mode - temp under acceptable condition |
| Fr | Freeze condition - temp below 40 degrees |
| FrE | Fr, FP Freeze condition detected |
| FrE | Possible freeze condition |
| FrEE | Freeze Protection Alarm |
| H2O | Water Prime Fault - lack of water |
| HFL | Substantial difference between temperature sensors detected. Could indicate a flow problem |
| HiLi, HLEr | Water temperature above acceptable range |
| HL, HFL, HH, OHH | High limit sensor reading 45-48C, or above - check flow |
| HL | Temp above 118 degrees. High limit switch tripped |
| HLoH | Hi Limit Over Heat. Hi limit sensor is disconnected, shorted, or spa temp is above 112° F |
| Hold | Panel buttons pressed to many times/quickly |
| HOT | Circuit Board temperature has exceeded acceptable limit. System will restart when temp. drops |
| I CE2 | Freeze protection. No action is necessary |
| IC | Freeze Condition |
| ICE | Freeze condition. 55ºF detected. Low speed pump and heater will activate until spa reaches 65ºF |
| ILOC | Interlock failure - possible pump/ozone spike - possibly caused by faulty ozonators, pumps and equipment |
| L1 | Panel Lock |
| L2 | Panel Lock |
| LF | Persistent low flow. (Displays on 5th occurrence of “HFL” message with 24 hours). Heater is shut down |
| LO | Freeze Condition |
| LOC | Control Panel functions Locked |
| Loc | Panel / Keypad Locked |
| LS=0, LS=S | Multiple causes - open circuit sensor, faulty panel connection, improper voltage, etc |
| O3-Er | Ozone error |
| 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 |
| OHH | Overheat. One sensor has detected 118º. Spa has shut down |
| OHS | Overheat. One sensor has detected 110º. Spa has shut down |
| OP | Open circuit sensor |
| P1, P2 or P3-ER | Pump 1, 2 or 3 failure |
| pd | Power supply interrupted, unit running on battery backup |
| PLUG | Sundance/Spa Builders Service Technician’s Test Plug accidentally left connected to PCB |
| PnL | Communication error between the panel and circuit board |
| Pr | System Priming - When spa is first actuated, it will go into Priming Mode |
| Prh | Hi-limit sensor failure |
| Prr | Temperature Sensors Alarm |
| 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 |
| Rly | Stuck Relay on In.XE |
| RH-HR | Heater Hardware error |
| RH-NC | Comm error to Pack |
| RH-NF | No flow in heater |
| RH-NH | Heat attempted & failed |
| SA, SnA, SnH, Sb, Snb, Snt | Sensor Open Circuit or faulty |
| SC-ER | System learning failure |
| SE | Spa operating in Standard-in-Economy Mode |
| SEoP | Sensor open or disconnected. Heater disabled but spa operational |
| SESH | Sensor short, nonfunctional. Heater disabled but spa operational |
| SH | Short circuit sensor |
| Sn1 | Hi-limit sensor malfunction |
| Sn2 | Nonfunctional temperature sensor. Heater deactivated |
| Sn3 | Temp sensor malfunction |
| SN | Non functional high temperature sensor. Heater is deactivated |
| Sn | Sensors out of balance |
| Sna | Sensor plugged into jack A is not working. Spa is shut down |
| Snb | Sensor plugged into jack B is not working. Spa is shut down |
| SnH | Hi Limit circuit open or faulty |
| SnS | Sensors out of balance. If display shows only this message (blinking) spa is shut down |
| SnT | Temp sensor circuit open or faulty |
| SP-BR | breaker setting to low |
| SP-F1,F2 or F3 | Fuse 1, 2 or blown |
| SP-HR | hardware error |
| SP-IN | Input voltage low |
| SP-OH | Water temp over 112F |
| SP-OT | Temp inside skirt high |
| SS=0;SS=S;LS=O;LS=S | Multiple causes; open sensors, bad connection to panel, improper voltage, etc. |
| Std | Spa operating in Standard Mode |
| th2/current | On startup indicates temperature probe problem |
| th3/39 | On startup indicates water temperature less than 39° F |
| thl/39 | temp probe problem |
| ToE | Time out error. Rare system error. Spa unusable. |
| Tu | Temperature Set Celsius or Fahrenheit |
2) 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 |
