Clearwater Spas
Clearwater Spas Hot Tubs & Spas Error Codes
Complete list of fault codes and troubleshooting guides. Use the search below to find your specific error.
Advertisements
COL
Display shows COL or COOL, heater does not run and spa may run pumps to warm water slightly.
Cold Water Protection / Freeze or Low Temperature Condition
DR
Display shows DR or DRY, heater is disabled and spa may run pumps briefly then shut down.
Dry Heater or Insufficient Water in Heater Tube
DY
Display shows DY or DRY Y, spa may attempt to run but heater remains off and error reappears.
Persistent Dry Heater Condition
EC
Display shows EC or ECON, spa heats slowly and may not maintain high temperatures during heavy use.
Economy or Energy-Saving Mode Active
FLC
Display shows FLC or FLOC, spa may heat intermittently or not at all, jets may still operate.
Flow Switch Closed When It Should Be Open
FLO
Display shows FLO or FL, jets may not run, heater will not turn on, and spa may shut down after a short period.
Low Water Flow / Flow Switch Open
GFCI
Display is blank, GFCI breaker or outlet trips immediately or shortly after turning spa on.
Ground Fault or Leakage Current Detected
HL
Display shows HL or HILI, spa may stop heating and may shut down pumps intermittently.
High-Limit Protection Activated (Not Latched OHH)
ICE
Display shows ICE or FR, pumps may run automatically even when spa is off, heater may cycle to prevent freezing.
Freeze Protection Mode Active
LOC
Display shows LOC or LOCK, buttons on the topside control panel do not respond.
Panel Lock / Child Lock Enabled
OH
Display shows OH or OHH, spa shuts down, pumps may run briefly then stop, water feels excessively hot near heater outlet.
Overheat Condition Detected
OHH
Display shows OHH or HH, spa shuts down completely, no heat, pumps may be disabled until reset.
High-Limit Overheat Trip
OHt
Display shows OHt or HOT, heater shuts off but pumps may continue to run.
Heater Over-Temperature Condition
P1
Display shows P1 error, first jet pump does not start or shuts off quickly.
Pump 1 Overcurrent or Startup Fault
P2
Display shows P2 error, second jet pump fails to start or trips breaker.
Pump 2 Overcurrent or Fault
PF
Display shows PF or PFL, spa resets unexpectedly or shows power failure message after outages.
Power Failure / Low Line Voltage Event
Prr
Display shows PRR or Prr, spa may not heat and may run pumps intermittently.
Heater Pressure or Flow Fault
SE
Display shows SE or SEr, spa may operate but temperature reading is erratic or heater cycles oddly.
Sensor Error or Sensor Out of Range
SLP
Display shows SLP or SL, spa maintains a lower temperature and heats only during filter cycles.
Sleep Mode Active
SN1
Display shows SN1 or SENS1, spa may not heat and may show dashes or low temperature reading.
Primary Temperature Sensor Error (Open or Shorted)
SN2
Display shows SN2 or SENS2, spa may shut down heating or run with limited functions.
High-Limit or Secondary Sensor Error
—
Display shows three dashes (---) or similar, no temperature reading, spa may not heat.
No Temperature Reading / Sensor Disconnected
Symptom
Air blower does not turn on or shuts off quickly.
Air Blower Failure or Overheat
Symptom
Display is dim, flickering, or unreadable, but spa still runs.
Display Failure / Low Voltage to Topside
Symptom
Filter cycle does not run at scheduled times or runs continuously.
Filter Cycle Programming or Control Logic Fault
Symptom
GFCI trips only when heater is activated; spa runs fine with heater disconnected.
Heater Ground Fault / Element Breakdown
Symptom
Jets are weak or no water comes out of jets even though pump is running.
Poor Jet Flow / Circulation Restriction
Symptom
Ozone indicator is on but no bubbles are visible from the ozone injector.
Ozonator or Injector Failure
Symptom
Pump hums but does not start, or starts slowly and then trips the breaker.
Seized or Failing Jet Pump Motor
Symptom
Spa cabinet or shell vibrates excessively when jets are on high speed.
Excessive Vibration / Imbalanced Pump
Symptom
Spa is leaking water into the equipment bay, water visible under pumps or heater.
Plumbing Leak in Equipment Area
Symptom
Spa makes loud grinding or squealing noise from pump area when running.
Worn Pump Bearings or Cavitation
Symptom
Spa powers on but will not heat, temperature remains below setpoint even after many hours.
No Heat Condition
Symptom
Spa water has a strong chemical or musty odor.
Odor / Contaminated Water
Symptom
Spa water is foamy, with persistent bubbles even when jets are off.
Excessive Foam / Water Chemistry Imbalance
Symptom
Spa will not power on at all, no lights on topside control, no pump activity.
No Power / Dead Spa
Symptom
Topside control panel buttons are unresponsive or some buttons do not work.
Failed or Water-Damaged Topside Control Panel
Symptom
Underwater LED lights flicker, some colors do not work, or lights are out completely.
LED Lighting Circuit or Module Failure
Symptom
Water level in spa drops over time with no visible leak in equipment bay.
Shell or Jet Body Leak
Symptom
Water temperature overshoots the setpoint by several degrees before heater shuts off.
Temperature Overshoot / Control Calibration Issue
| Error Code | Symptom | Fault Type | Guide |
|---|---|---|---|
| COL |
Display shows COL or COOL, heater does not run and spa may run pumps to warm water slightly.
|
Cold Water Protection / Freeze or Low Temperature Condition | View Details |
| DR |
Display shows DR or DRY, heater is disabled and spa may run pumps briefly then shut down.
|
Dry Heater or Insufficient Water in Heater Tube | View Details |
| DY |
Display shows DY or DRY Y, spa may attempt to run but heater remains off and error reappears.
|
Persistent Dry Heater Condition | View Details |
| EC |
Display shows EC or ECON, spa heats slowly and may not maintain high temperatures during heavy use.
|
Economy or Energy-Saving Mode Active | View Details |
| FLC |
Display shows FLC or FLOC, spa may heat intermittently or not at all, jets may still operate.
|
Flow Switch Closed When It Should Be Open | View Details |
| FLO |
Display shows FLO or FL, jets may not run, heater will not turn on, and spa may shut down after a short period.
|
Low Water Flow / Flow Switch Open | View Details |
| GFCI |
Display is blank, GFCI breaker or outlet trips immediately or shortly after turning spa on.
|
Ground Fault or Leakage Current Detected | View Details |
| HL |
Display shows HL or HILI, spa may stop heating and may shut down pumps intermittently.
|
High-Limit Protection Activated (Not Latched OHH) | View Details |
| ICE |
Display shows ICE or FR, pumps may run automatically even when spa is off, heater may cycle to prevent freezing.
|
Freeze Protection Mode Active | View Details |
| LOC |
Display shows LOC or LOCK, buttons on the topside control panel do not respond.
|
Panel Lock / Child Lock Enabled | View Details |
| OH |
Display shows OH or OHH, spa shuts down, pumps may run briefly then stop, water feels excessively hot near heater outlet.
|
Overheat Condition Detected | View Details |
| OHH |
Display shows OHH or HH, spa shuts down completely, no heat, pumps may be disabled until reset.
|
High-Limit Overheat Trip | View Details |
| OHt |
Display shows OHt or HOT, heater shuts off but pumps may continue to run.
|
Heater Over-Temperature Condition | View Details |
| P1 |
Display shows P1 error, first jet pump does not start or shuts off quickly.
|
Pump 1 Overcurrent or Startup Fault | View Details |
| P2 |
Display shows P2 error, second jet pump fails to start or trips breaker.
|
Pump 2 Overcurrent or Fault | View Details |
| PF |
Display shows PF or PFL, spa resets unexpectedly or shows power failure message after outages.
|
Power Failure / Low Line Voltage Event | View Details |
| Prr |
Display shows PRR or Prr, spa may not heat and may run pumps intermittently.
|
Heater Pressure or Flow Fault | View Details |
| SE |
Display shows SE or SEr, spa may operate but temperature reading is erratic or heater cycles oddly.
|
Sensor Error or Sensor Out of Range | View Details |
| SLP |
Display shows SLP or SL, spa maintains a lower temperature and heats only during filter cycles.
|
Sleep Mode Active | View Details |
| SN1 |
Display shows SN1 or SENS1, spa may not heat and may show dashes or low temperature reading.
|
Primary Temperature Sensor Error (Open or Shorted) | View Details |
| SN2 |
Display shows SN2 or SENS2, spa may shut down heating or run with limited functions.
|
High-Limit or Secondary Sensor Error | View Details |
| — |
Display shows three dashes (---) or similar, no temperature reading, spa may not heat.
|
No Temperature Reading / Sensor Disconnected | View Details |
| – |
Air blower does not turn on or shuts off quickly.
|
Air Blower Failure or Overheat | View Details |
| – |
Display is dim, flickering, or unreadable, but spa still runs.
|
Display Failure / Low Voltage to Topside | View Details |
| – |
Filter cycle does not run at scheduled times or runs continuously.
|
Filter Cycle Programming or Control Logic Fault | View Details |
| – |
GFCI trips only when heater is activated; spa runs fine with heater disconnected.
|
Heater Ground Fault / Element Breakdown | View Details |
| – |
Jets are weak or no water comes out of jets even though pump is running.
|
Poor Jet Flow / Circulation Restriction | View Details |
| – |
Ozone indicator is on but no bubbles are visible from the ozone injector.
|
Ozonator or Injector Failure | View Details |
| – |
Pump hums but does not start, or starts slowly and then trips the breaker.
|
Seized or Failing Jet Pump Motor | View Details |
| – |
Spa cabinet or shell vibrates excessively when jets are on high speed.
|
Excessive Vibration / Imbalanced Pump | View Details |
| – |
Spa is leaking water into the equipment bay, water visible under pumps or heater.
|
Plumbing Leak in Equipment Area | View Details |
| – |
Spa makes loud grinding or squealing noise from pump area when running.
|
Worn Pump Bearings or Cavitation | View Details |
| – |
Spa powers on but will not heat, temperature remains below setpoint even after many hours.
|
No Heat Condition | View Details |
| – |
Spa water has a strong chemical or musty odor.
|
Odor / Contaminated Water | View Details |
| – |
Spa water is foamy, with persistent bubbles even when jets are off.
|
Excessive Foam / Water Chemistry Imbalance | View Details |
| – |
Spa will not power on at all, no lights on topside control, no pump activity.
|
No Power / Dead Spa | View Details |
| – |
Topside control panel buttons are unresponsive or some buttons do not work.
|
Failed or Water-Damaged Topside Control Panel | View Details |
| – |
Underwater LED lights flicker, some colors do not work, or lights are out completely.
|
LED Lighting Circuit or Module Failure | View Details |
| – |
Water level in spa drops over time with no visible leak in equipment bay.
|
Shell or Jet Body Leak | View Details |
| – |
Water temperature overshoots the setpoint by several degrees before heater shuts off.
|
Temperature Overshoot / Control Calibration Issue | View Details |
No matching codes found
Advertisements