Aquavia Spa
Aquavia Spa 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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CF
CF or CL code appears and some buttons may be locked.
Child Lock / Control Lock Activated
dr
Display shows dr and spa may shut down heating; water level may be low.
Dry Heater / Low Water in Heater Tube
dY
dY error and spa may shut down heating shortly after start-up.
Dry Fire Protection / Heater Running Without Adequate Water
EC
EC code displayed; spa may run in economy mode and heat only during filter cycles.
Economy Heating Mode Indication (Not a Fault)
F1
Control panel displays F1 and spa functions are disabled or intermittent.
Water Flow Fault / Low Flow Detection
F2
Display shows F2 and heating is disabled; spa may run pumps but will not heat.
Heater Overheat / High-Limit Trip
F3
Control panel shows F3 and temperature reading is erratic or clearly incorrect.
Water Temperature Sensor Fault
F4
Display shows F4 and spa will not heat; sometimes pumps still operate.
Heater Relay or Heating Circuit Failure
F5
F5 appears and pumps may not start or may shut down shortly after starting.
Pump Overcurrent / Motor Protection Fault
F6
Display shows F6 and circulation or massage pumps do not respond to commands.
Pump Communication / Output Fault
F7
F7 error and spa may shut down or run only briefly before stopping.
Low Line Voltage / Power Supply Fault
F8
Display shows F8 and spa may not heat or may shut down unexpectedly.
Flow Switch / Pressure Switch Fault
F9
F9 appears and the spa may not respond to keypad inputs or may reboot repeatedly.
Control Panel / Keypad Communication Fault
FLO
FLO error and heater will not turn on; circulation may be weak or intermittent.
Insufficient Water Flow Through Heater
HL
HL error appears and spa stops heating; pumps may continue to run.
High-Limit Sensor Trip
OH
Display shows OH and spa shuts down; water feels excessively hot.
Overheat Protection / Water Over-Temperature
P1
Display shows P1 and the primary massage pump does not start or runs erratically.
Pump 1 Output Fault
P2
P2 error and secondary massage pump will not operate.
Pump 2 Output Fault
P3
P3 error and third pump or blower does not start.
Auxiliary Pump / Blower Output Fault
PR
PR displayed after power-up; pumps may run automatically.
Priming Mode (Startup Routine)
SE
SE error and spa may not respond correctly to temperature settings.
Sensor Calibration / Sensor Error
Sn1
Sn1 error and spa may not heat; temperature reading may be missing or show dashes.
Primary Temperature Sensor Open/Short
Sn2
Sn2 error and spa may shut down heating or show unstable temperature control.
Secondary / High-Limit Sensor Fault
Symptom
Acrid or burning smell from equipment bay when spa is running.
Overheating Electrical Component
Symptom
Air blower is very loud, surges, or spits water from air injectors.
Air Blower Water Ingress / Air Line Obstruction
Symptom
Jets are weak or uneven; some seats have very little water pressure.
Reduced Jet Pressure / Hydraulic Imbalance
Symptom
LED lighting does not work or some zones are out; spa otherwise operates normally.
LED Lighting Circuit or Module Failure
Symptom
Ozone or UV sanitizer indicator is off and water quality declines faster than usual.
Ozone Generator or UV System Failure
Symptom
Pump hums but does not start; may trip breaker after a few seconds.
Seized Pump Motor or Failed Start Capacitor
Symptom
Spa cabinet or shell vibrates excessively and makes loud rumbling noises when pumps run.
Excessive Vibration / Pump Mounting Issue
Symptom
Spa cover is heavy, waterlogged, and difficult to remove; heat loss is noticeable.
Waterlogged Insulated Cover
Symptom
Spa does not power on at all; display is blank and no pumps run.
No Power / Dead Spa
Symptom
Spa is leaking water from the equipment area under the cabinet.
Plumbing Leak in Equipment Bay
Symptom
Spa powers on but will not heat; temperature remains below setpoint with no error code.
No Heat Without Error
Symptom
Spa shell has visible cracks or blisters; some areas may weep water slowly.
Acrylic Shell Damage / Osmotic Blistering
Symptom
Spa trips the breaker immediately or shortly after turning on.
Electrical Short or Ground Fault
Symptom
Spa water is cloudy, foamy, or has a strong chemical or musty odor.
Water Quality / Sanitation Imbalance
Symptom
Topside control panel buttons are unresponsive or only some buttons work.
Keypad / Topside Panel Failure
Symptom
Water is leaking from around individual jets in the shell.
Jet Body or Gasket Leak
Symptom
Water level drops noticeably between uses without visible external leaks.
Hidden Plumbing Leak in Foam-Insulated Areas
| Error Code | Symptom | Fault Type | Guide |
|---|---|---|---|
| CF |
CF or CL code appears and some buttons may be locked.
|
Child Lock / Control Lock Activated | View Details |
| dr |
Display shows dr and spa may shut down heating; water level may be low.
|
Dry Heater / Low Water in Heater Tube | View Details |
| dY |
dY error and spa may shut down heating shortly after start-up.
|
Dry Fire Protection / Heater Running Without Adequate Water | View Details |
| EC |
EC code displayed; spa may run in economy mode and heat only during filter cycles.
|
Economy Heating Mode Indication (Not a Fault) | View Details |
| F1 |
Control panel displays F1 and spa functions are disabled or intermittent.
|
Water Flow Fault / Low Flow Detection | View Details |
| F2 |
Display shows F2 and heating is disabled; spa may run pumps but will not heat.
|
Heater Overheat / High-Limit Trip | View Details |
| F3 |
Control panel shows F3 and temperature reading is erratic or clearly incorrect.
|
Water Temperature Sensor Fault | View Details |
| F4 |
Display shows F4 and spa will not heat; sometimes pumps still operate.
|
Heater Relay or Heating Circuit Failure | View Details |
| F5 |
F5 appears and pumps may not start or may shut down shortly after starting.
|
Pump Overcurrent / Motor Protection Fault | View Details |
| F6 |
Display shows F6 and circulation or massage pumps do not respond to commands.
|
Pump Communication / Output Fault | View Details |
| F7 |
F7 error and spa may shut down or run only briefly before stopping.
|
Low Line Voltage / Power Supply Fault | View Details |
| F8 |
Display shows F8 and spa may not heat or may shut down unexpectedly.
|
Flow Switch / Pressure Switch Fault | View Details |
| F9 |
F9 appears and the spa may not respond to keypad inputs or may reboot repeatedly.
|
Control Panel / Keypad Communication Fault | View Details |
| FLO |
FLO error and heater will not turn on; circulation may be weak or intermittent.
|
Insufficient Water Flow Through Heater | View Details |
| HL |
HL error appears and spa stops heating; pumps may continue to run.
|
High-Limit Sensor Trip | View Details |
| OH |
Display shows OH and spa shuts down; water feels excessively hot.
|
Overheat Protection / Water Over-Temperature | View Details |
| P1 |
Display shows P1 and the primary massage pump does not start or runs erratically.
|
Pump 1 Output Fault | View Details |
| P2 |
P2 error and secondary massage pump will not operate.
|
Pump 2 Output Fault | View Details |
| P3 |
P3 error and third pump or blower does not start.
|
Auxiliary Pump / Blower Output Fault | View Details |
| PR |
PR displayed after power-up; pumps may run automatically.
|
Priming Mode (Startup Routine) | View Details |
| SE |
SE error and spa may not respond correctly to temperature settings.
|
Sensor Calibration / Sensor Error | View Details |
| Sn1 |
Sn1 error and spa may not heat; temperature reading may be missing or show dashes.
|
Primary Temperature Sensor Open/Short | View Details |
| Sn2 |
Sn2 error and spa may shut down heating or show unstable temperature control.
|
Secondary / High-Limit Sensor Fault | View Details |
| – |
Acrid or burning smell from equipment bay when spa is running.
|
Overheating Electrical Component | View Details |
| – |
Air blower is very loud, surges, or spits water from air injectors.
|
Air Blower Water Ingress / Air Line Obstruction | View Details |
| – |
Jets are weak or uneven; some seats have very little water pressure.
|
Reduced Jet Pressure / Hydraulic Imbalance | View Details |
| – |
LED lighting does not work or some zones are out; spa otherwise operates normally.
|
LED Lighting Circuit or Module Failure | View Details |
| – |
Ozone or UV sanitizer indicator is off and water quality declines faster than usual.
|
Ozone Generator or UV System Failure | View Details |
| – |
Pump hums but does not start; may trip breaker after a few seconds.
|
Seized Pump Motor or Failed Start Capacitor | View Details |
| – |
Spa cabinet or shell vibrates excessively and makes loud rumbling noises when pumps run.
|
Excessive Vibration / Pump Mounting Issue | View Details |
| – |
Spa cover is heavy, waterlogged, and difficult to remove; heat loss is noticeable.
|
Waterlogged Insulated Cover | View Details |
| – |
Spa does not power on at all; display is blank and no pumps run.
|
No Power / Dead Spa | View Details |
| – |
Spa is leaking water from the equipment area under the cabinet.
|
Plumbing Leak in Equipment Bay | View Details |
| – |
Spa powers on but will not heat; temperature remains below setpoint with no error code.
|
No Heat Without Error | View Details |
| – |
Spa shell has visible cracks or blisters; some areas may weep water slowly.
|
Acrylic Shell Damage / Osmotic Blistering | View Details |
| – |
Spa trips the breaker immediately or shortly after turning on.
|
Electrical Short or Ground Fault | View Details |
| – |
Spa water is cloudy, foamy, or has a strong chemical or musty odor.
|
Water Quality / Sanitation Imbalance | View Details |
| – |
Topside control panel buttons are unresponsive or only some buttons work.
|
Keypad / Topside Panel Failure | View Details |
| – |
Water is leaking from around individual jets in the shell.
|
Jet Body or Gasket Leak | View Details |
| – |
Water level drops noticeably between uses without visible external leaks.
|
Hidden Plumbing Leak in Foam-Insulated Areas | View Details |
No matching codes found
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