Catalina Spas
Catalina Spas Hot Tubs & Spas Error Codes
Complete list of fault codes and troubleshooting guides. Use the search below to find your specific error.
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COL
Display shows COL or COOL; spa stops heating and may run pumps to circulate cooler water.
Cold Water Protection / Freeze or Cool Condition
dr
Display shows dr or DRY; heater is disabled and spa may run pumps briefly then shut down.
Dry-Fire Protection / Low Water in Heater
dY
Display shows dY or DY; spa indicates a dry heater condition and locks out heating.
Persistent Dry Heater Detection
EC
Display shows EC or ECON; spa heats only during filter cycles and may not maintain set temperature.
Economy Heating Mode Enabled
Err
Display shows Err or ERROR and spa functions are limited or disabled.
General System Fault
FLC
Display shows FLC or FL2; heater is disabled and spa may run pumps but still reports a flow switch problem.
Flow Switch Closed/Open at Wrong Time
FLO
Display shows FLO or FL1; heater will not turn on and spa may run pumps intermittently trying to establish flow.
Insufficient Water Flow Through Heater
HL
Display shows HL or HLo and spa stops heating and may shut down pumps; water may or may not feel hot.
High-Limit Sensor Trip
Htr
Display shows Htr or HEAT FAIL; spa does not reach set temperature.
Heater Failure or Heater Relay Fault
ICE
Display shows ICE or FR; pumps run automatically even when spa is not in use.
Freeze Protection Mode Active
LOC
Display shows LOC or LOCK; buttons on the topside control are unresponsive.
Panel Lock / Child Lock Activated
OH
Topside control panel displays OH and spa shuts down; water in the spa feels excessively hot, often above 108°F (42°C).
Overheat Protection Trip
P1
Display shows P1 ERR or P1 FAIL; primary jet pump does not start or trips breaker.
Pump 1 Circuit or Motor Fault
P2
Display shows P2 ERR or P2 FAIL; secondary jet pump does not operate correctly.
Pump 2 Circuit or Motor Fault
P3
Display shows P3 ERR; third pump or booster pump does not run when commanded.
Auxiliary Pump Circuit Fault
Pr
Display shows Pr or PRIMING; pumps may run intermittently and heater is disabled.
Priming Mode After Power-Up
SL
Display shows SL or SLP; spa heats to a lower temperature range and may feel cooler than expected.
Sleep or Low-Temperature Mode Enabled
Sn1
Display shows Sn1 or SENS1; spa may not heat or may shut down with sensor error.
Water Temperature Sensor Failure
Sn2
Display shows Sn2 or SENS2; spa may shut down heater and pumps intermittently.
High-Limit or Secondary Sensor Failure
—
Display shows dashes (---) or three dots instead of temperature; spa may not heat.
No Temperature Reading / Sensor Out of Range
Symptom
Air blower does not turn on or shuts off quickly after starting.
Air Blower Failure or Overheat
Symptom
Jets are weak or some seats have very low water pressure even though pumps are running.
Reduced Jet Flow / Hydraulic Restriction
Symptom
One or more jet pumps are very noisy, grinding, or squealing during operation.
Pump Bearing Wear or Cavitation
Symptom
Ozone indicator is on but water clarity is poor and there is no sign of ozone bubbles.
Ozonator or Injector Failure
Symptom
Spa cabinet or equipment bay has a persistent burning or electrical smell.
Overheating Electrical Component
Symptom
Spa cover is excessively heavy and waterlogged, making it difficult to open and close.
Waterlogged Spa Cover
Symptom
Spa frequently enters sleep or low-power mode unexpectedly, reducing heating and filtration.
Unintended Mode Changes / Programming Issue
Symptom
Spa heats but overshoots the set temperature by several degrees before shutting off.
Temperature Regulation Drift
Symptom
Spa is leaking water inside the equipment bay or from under the cabinet.
Plumbing or Component Leak
Symptom
Spa lights do not work or are stuck on one color/pattern.
LED Lighting System Fault
Symptom
Spa makes a loud humming noise but jets do not move water.
Seized Pump Motor or Air-Locked Pump
Symptom
Spa powers on but will not heat; water stays at or near ambient temperature with no error codes.
No Heat Without Error
Symptom
Spa trips the GFCI breaker immediately or within seconds of turning on.
Ground Fault or Short Circuit
Symptom
Spa water is foamy and leaves residue on the surface when jets are running.
Foaming Due to Contaminants
Symptom
Spa will not power on at all; topside display is blank and no pumps run.
No Power / Dead Spa
Symptom
Topside control panel is blank or unreadable, but pumps may still run on programmed cycles.
Topside Control Panel Failure
Symptom
Water has a strong chemical or musty odor despite normal sanitizer levels.
Water Quality / Biofilm Contamination
Symptom
Water is leaking from around one or more jets in the spa shell.
Jet Body or Gasket Leak
Symptom
Water temperature fluctuates widely during use, feeling too hot near jets and cool elsewhere.
Poor Temperature Mixing / Circulation Imbalance
| Error Code | Symptom | Fault Type | Guide |
|---|---|---|---|
| COL |
Display shows COL or COOL; spa stops heating and may run pumps to circulate cooler water.
|
Cold Water Protection / Freeze or Cool Condition | View Details |
| dr |
Display shows dr or DRY; heater is disabled and spa may run pumps briefly then shut down.
|
Dry-Fire Protection / Low Water in Heater | View Details |
| dY |
Display shows dY or DY; spa indicates a dry heater condition and locks out heating.
|
Persistent Dry Heater Detection | View Details |
| EC |
Display shows EC or ECON; spa heats only during filter cycles and may not maintain set temperature.
|
Economy Heating Mode Enabled | View Details |
| Err |
Display shows Err or ERROR and spa functions are limited or disabled.
|
General System Fault | View Details |
| FLC |
Display shows FLC or FL2; heater is disabled and spa may run pumps but still reports a flow switch problem.
|
Flow Switch Closed/Open at Wrong Time | View Details |
| FLO |
Display shows FLO or FL1; heater will not turn on and spa may run pumps intermittently trying to establish flow.
|
Insufficient Water Flow Through Heater | View Details |
| HL |
Display shows HL or HLo and spa stops heating and may shut down pumps; water may or may not feel hot.
|
High-Limit Sensor Trip | View Details |
| Htr |
Display shows Htr or HEAT FAIL; spa does not reach set temperature.
|
Heater Failure or Heater Relay Fault | View Details |
| ICE |
Display shows ICE or FR; pumps run automatically even when spa is not in use.
|
Freeze Protection Mode Active | View Details |
| LOC |
Display shows LOC or LOCK; buttons on the topside control are unresponsive.
|
Panel Lock / Child Lock Activated | View Details |
| OH |
Topside control panel displays OH and spa shuts down; water in the spa feels excessively hot, often above 108°F (42°C).
|
Overheat Protection Trip | View Details |
| P1 |
Display shows P1 ERR or P1 FAIL; primary jet pump does not start or trips breaker.
|
Pump 1 Circuit or Motor Fault | View Details |
| P2 |
Display shows P2 ERR or P2 FAIL; secondary jet pump does not operate correctly.
|
Pump 2 Circuit or Motor Fault | View Details |
| P3 |
Display shows P3 ERR; third pump or booster pump does not run when commanded.
|
Auxiliary Pump Circuit Fault | View Details |
| Pr |
Display shows Pr or PRIMING; pumps may run intermittently and heater is disabled.
|
Priming Mode After Power-Up | View Details |
| SL |
Display shows SL or SLP; spa heats to a lower temperature range and may feel cooler than expected.
|
Sleep or Low-Temperature Mode Enabled | View Details |
| Sn1 |
Display shows Sn1 or SENS1; spa may not heat or may shut down with sensor error.
|
Water Temperature Sensor Failure | View Details |
| Sn2 |
Display shows Sn2 or SENS2; spa may shut down heater and pumps intermittently.
|
High-Limit or Secondary Sensor Failure | View Details |
| — |
Display shows dashes (---) or three dots instead of temperature; spa may not heat.
|
No Temperature Reading / Sensor Out of Range | View Details |
| – |
Air blower does not turn on or shuts off quickly after starting.
|
Air Blower Failure or Overheat | View Details |
| – |
Jets are weak or some seats have very low water pressure even though pumps are running.
|
Reduced Jet Flow / Hydraulic Restriction | View Details |
| – |
One or more jet pumps are very noisy, grinding, or squealing during operation.
|
Pump Bearing Wear or Cavitation | View Details |
| – |
Ozone indicator is on but water clarity is poor and there is no sign of ozone bubbles.
|
Ozonator or Injector Failure | View Details |
| – |
Spa cabinet or equipment bay has a persistent burning or electrical smell.
|
Overheating Electrical Component | View Details |
| – |
Spa cover is excessively heavy and waterlogged, making it difficult to open and close.
|
Waterlogged Spa Cover | View Details |
| – |
Spa frequently enters sleep or low-power mode unexpectedly, reducing heating and filtration.
|
Unintended Mode Changes / Programming Issue | View Details |
| – |
Spa heats but overshoots the set temperature by several degrees before shutting off.
|
Temperature Regulation Drift | View Details |
| – |
Spa is leaking water inside the equipment bay or from under the cabinet.
|
Plumbing or Component Leak | View Details |
| – |
Spa lights do not work or are stuck on one color/pattern.
|
LED Lighting System Fault | View Details |
| – |
Spa makes a loud humming noise but jets do not move water.
|
Seized Pump Motor or Air-Locked Pump | View Details |
| – |
Spa powers on but will not heat; water stays at or near ambient temperature with no error codes.
|
No Heat Without Error | View Details |
| – |
Spa trips the GFCI breaker immediately or within seconds of turning on.
|
Ground Fault or Short Circuit | View Details |
| – |
Spa water is foamy and leaves residue on the surface when jets are running.
|
Foaming Due to Contaminants | View Details |
| – |
Spa will not power on at all; topside display is blank and no pumps run.
|
No Power / Dead Spa | View Details |
| – |
Topside control panel is blank or unreadable, but pumps may still run on programmed cycles.
|
Topside Control Panel Failure | View Details |
| – |
Water has a strong chemical or musty odor despite normal sanitizer levels.
|
Water Quality / Biofilm Contamination | View Details |
| – |
Water is leaking from around one or more jets in the spa shell.
|
Jet Body or Gasket Leak | View Details |
| – |
Water temperature fluctuates widely during use, feeling too hot near jets and cool elsewhere.
|
Poor Temperature Mixing / Circulation Imbalance | View Details |
No matching codes found
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