RivieraPool
RivieraPool 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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AOH
Display shows AOH and spa shuts down or limits operation; equipment bay feels very warm.
Ambient Overheat in Equipment Compartment
COdE
Display shows COdE or CODE and spa is unresponsive to normal controls.
Control System Configuration / Programming Mode
COL
Display shows COL or COOL and spa runs pumps but does not heat to set temperature.
Low Temperature / Freeze Protection Active
dr
Display shows dr or DR and heater is disabled; spa may run pumps but not heat.
Dry Heater / Low Water in Heater Tube
dY
Display shows dY or DRY and spa will not heat; often follows a dr error.
Dry-Fire Lockout
EC
Display shows EC or ECO and spa heats less frequently; water may not stay at maximum set temperature.
Economy Heating Mode Active
FLO
Control panel displays FLO or FLOW and spa will not heat; circulation pump may run briefly then stop.
Insufficient Water Flow Through Heater
FLO2
Display shows FLO2 or FLOW2 and spa may shut down heater; often occurs during high-speed jet operation.
High-Flow Circuit Fault / Secondary Flow Switch Open
HL
Display shows HL or HILI and spa stops heating; pumps may continue to run.
High-Limit Sensor Trip
Htr
Display shows Htr or HEAT ERR; spa does not heat even though pump runs.
Heater Circuit Failure
ICE
Display shows ICE and pumps run periodically even when spa is not in use.
Freeze Protection Mode
LOC
Display shows LOC or a lock icon; buttons do not respond.
Keypad Lock / Panel Lockout
OH
Display shows OH or OHH and spa shuts down; water may feel excessively hot near heater return.
Overheat Protection Trip
OHH
Display shows OHH and spa immediately shuts down heater and pumps; often accompanied by very hot water in equipment bay.
Critical Overheat Lockout
OHt
Display shows OHt and spa intermittently shuts off heater; water may not reach set temperature.
Overheat Tendency / Sensor Differential Error
P1
Display shows P1 ERR or P1 and pump 1 does not operate correctly.
Pump 1 Circuit Fault
P2
Display shows P2 ERR or P2 and pump 2 does not operate correctly.
Pump 2 Circuit Fault
PF
Display shows PF or PFAIL and spa will not operate; may occur after a power outage.
Power Failure / Voltage Error
Prr
Display shows Prr or PR and spa may not heat or may behave erratically.
Pressure Switch or Flow Switch Error
PSH
Display shows PSH and spa may shut down heater; pumps may continue.
Pressure Switch Closed When Should Be Open
PSo
Display shows PSo or PSO and spa may not start heater or may shut down.
Pressure Switch Open When Should Be Closed
SE
Display shows SE or SENSOR and spa may not heat or may shut down.
General Sensor Error
SLP
Display shows SLP or SLEEP and spa only heats during filter cycles; water may feel cooler than expected.
Sleep Mode Active
Sn1
Display shows Sn1 or SENS1 and spa may not heat or may shut down.
Primary Temperature Sensor Failure
Sn2
Display shows Sn2 or SENS2; spa may heat erratically or shut down.
Secondary / High-Limit Sensor Failure
Symptom
Control panel buttons are unresponsive or activate the wrong functions.
Keypad Membrane or Communication Fault
Symptom
Ozone or sanitizer system is not operating; water quality declines faster than normal.
Ozonator / Sanitizer Generator Failure
Symptom
Spa cabinet or shell vibrates excessively and the noise is transmitted into surrounding structures.
Excessive Vibration / Pump Mounting Issue
Symptom
Spa does not heat; water stays at ambient temperature even though pumps run and no error code is displayed.
No Heat Without Error
Symptom
Spa emits a strong burning or electrical smell from the equipment area.
Overheating Electrical Component
Symptom
Spa heats very slowly or cannot reach the set temperature, especially in cold weather.
Insufficient Heating Performance
Symptom
Spa is leaking water from the equipment bay area.
Equipment Compartment Leak
Symptom
Spa lights do not work, but all other functions operate normally.
LED/Light Circuit Failure
Symptom
Spa makes loud grinding or screeching noises when jets are running.
Pump Bearing or Motor Failure
Symptom
Spa powers on but will not start any pumps; relays click but no water movement.
Pump Start Failure
Symptom
Spa trips the GFCI breaker immediately or shortly after being turned on.
Ground Fault or Short Circuit
Symptom
Spa water has a strong chemical or musty odor even with normal sanitizer levels.
Water Quality and Ventilation Issue
Symptom
Spa water has very weak jet pressure even when pumps are on high speed.
Low Jet Pressure
Symptom
Spa water is cloudy and does not clear even with filtration.
Suspended Solids / Filtration Inefficiency
Symptom
Spa water is foamy and bubbles persist on the surface.
Foaming Due to Contaminants
Symptom
Spa water temperature fluctuates significantly or feels hotter/colder than the displayed temperature.
Inaccurate Temperature Sensing
Symptom
Spa will not power on at all; control panel is completely blank and pumps do not run.
No Power to Spa System
Symptom
Water is leaking from around one or more jets in the spa shell.
Jet Body or Gasket Leak
| Error Code | Symptom | Fault Type | Guide |
|---|---|---|---|
| AOH |
Display shows AOH and spa shuts down or limits operation; equipment bay feels very warm.
|
Ambient Overheat in Equipment Compartment | View Details |
| COdE |
Display shows COdE or CODE and spa is unresponsive to normal controls.
|
Control System Configuration / Programming Mode | View Details |
| COL |
Display shows COL or COOL and spa runs pumps but does not heat to set temperature.
|
Low Temperature / Freeze Protection Active | View Details |
| dr |
Display shows dr or DR and heater is disabled; spa may run pumps but not heat.
|
Dry Heater / Low Water in Heater Tube | View Details |
| dY |
Display shows dY or DRY and spa will not heat; often follows a dr error.
|
Dry-Fire Lockout | View Details |
| EC |
Display shows EC or ECO and spa heats less frequently; water may not stay at maximum set temperature.
|
Economy Heating Mode Active | View Details |
| FLO |
Control panel displays FLO or FLOW and spa will not heat; circulation pump may run briefly then stop.
|
Insufficient Water Flow Through Heater | View Details |
| FLO2 |
Display shows FLO2 or FLOW2 and spa may shut down heater; often occurs during high-speed jet operation.
|
High-Flow Circuit Fault / Secondary Flow Switch Open | View Details |
| HL |
Display shows HL or HILI and spa stops heating; pumps may continue to run.
|
High-Limit Sensor Trip | View Details |
| Htr |
Display shows Htr or HEAT ERR; spa does not heat even though pump runs.
|
Heater Circuit Failure | View Details |
| ICE |
Display shows ICE and pumps run periodically even when spa is not in use.
|
Freeze Protection Mode | View Details |
| LOC |
Display shows LOC or a lock icon; buttons do not respond.
|
Keypad Lock / Panel Lockout | View Details |
| OH |
Display shows OH or OHH and spa shuts down; water may feel excessively hot near heater return.
|
Overheat Protection Trip | View Details |
| OHH |
Display shows OHH and spa immediately shuts down heater and pumps; often accompanied by very hot water in equipment bay.
|
Critical Overheat Lockout | View Details |
| OHt |
Display shows OHt and spa intermittently shuts off heater; water may not reach set temperature.
|
Overheat Tendency / Sensor Differential Error | View Details |
| P1 |
Display shows P1 ERR or P1 and pump 1 does not operate correctly.
|
Pump 1 Circuit Fault | View Details |
| P2 |
Display shows P2 ERR or P2 and pump 2 does not operate correctly.
|
Pump 2 Circuit Fault | View Details |
| PF |
Display shows PF or PFAIL and spa will not operate; may occur after a power outage.
|
Power Failure / Voltage Error | View Details |
| Prr |
Display shows Prr or PR and spa may not heat or may behave erratically.
|
Pressure Switch or Flow Switch Error | View Details |
| PSH |
Display shows PSH and spa may shut down heater; pumps may continue.
|
Pressure Switch Closed When Should Be Open | View Details |
| PSo |
Display shows PSo or PSO and spa may not start heater or may shut down.
|
Pressure Switch Open When Should Be Closed | View Details |
| SE |
Display shows SE or SENSOR and spa may not heat or may shut down.
|
General Sensor Error | View Details |
| SLP |
Display shows SLP or SLEEP and spa only heats during filter cycles; water may feel cooler than expected.
|
Sleep Mode Active | View Details |
| Sn1 |
Display shows Sn1 or SENS1 and spa may not heat or may shut down.
|
Primary Temperature Sensor Failure | View Details |
| Sn2 |
Display shows Sn2 or SENS2; spa may heat erratically or shut down.
|
Secondary / High-Limit Sensor Failure | View Details |
| – |
Control panel buttons are unresponsive or activate the wrong functions.
|
Keypad Membrane or Communication Fault | View Details |
| – |
Ozone or sanitizer system is not operating; water quality declines faster than normal.
|
Ozonator / Sanitizer Generator Failure | View Details |
| – |
Spa cabinet or shell vibrates excessively and the noise is transmitted into surrounding structures.
|
Excessive Vibration / Pump Mounting Issue | View Details |
| – |
Spa does not heat; water stays at ambient temperature even though pumps run and no error code is displayed.
|
No Heat Without Error | View Details |
| – |
Spa emits a strong burning or electrical smell from the equipment area.
|
Overheating Electrical Component | View Details |
| – |
Spa heats very slowly or cannot reach the set temperature, especially in cold weather.
|
Insufficient Heating Performance | View Details |
| – |
Spa is leaking water from the equipment bay area.
|
Equipment Compartment Leak | View Details |
| – |
Spa lights do not work, but all other functions operate normally.
|
LED/Light Circuit Failure | View Details |
| – |
Spa makes loud grinding or screeching noises when jets are running.
|
Pump Bearing or Motor Failure | View Details |
| – |
Spa powers on but will not start any pumps; relays click but no water movement.
|
Pump Start Failure | View Details |
| – |
Spa trips the GFCI breaker immediately or shortly after being turned on.
|
Ground Fault or Short Circuit | View Details |
| – |
Spa water has a strong chemical or musty odor even with normal sanitizer levels.
|
Water Quality and Ventilation Issue | View Details |
| – |
Spa water has very weak jet pressure even when pumps are on high speed.
|
Low Jet Pressure | View Details |
| – |
Spa water is cloudy and does not clear even with filtration.
|
Suspended Solids / Filtration Inefficiency | View Details |
| – |
Spa water is foamy and bubbles persist on the surface.
|
Foaming Due to Contaminants | View Details |
| – |
Spa water temperature fluctuates significantly or feels hotter/colder than the displayed temperature.
|
Inaccurate Temperature Sensing | View Details |
| – |
Spa will not power on at all; control panel is completely blank and pumps do not run.
|
No Power to Spa System | View Details |
| – |
Water is leaking from around one or more jets in the spa shell.
|
Jet Body or Gasket Leak | View Details |
No matching codes found
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