Villeroy & Boch
Villeroy & Boch 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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COOL
Display shows COOL, heater does not run until water warms slightly
Cool Water Protection / Anti-Freeze Mode
dr
Display shows dr, heater disabled, spa may run pumps briefly then stop
Dry Heater / Low Water in Heater
dY
dY error, spa indicates dry condition and shuts down heater
Dry Fire Protection / No Water Detected in Heater
F1
Control panel beeps and displays F1, spa will not start pumps or heater
Water Flow Fault / Pressure Switch Open
F2
Display shows F2 and heater does not operate, spa may run pumps but water does not heat
High Limit Sensor Open / Overheat Protection Triggered
F3
F3 displayed, heater cycles erratically or spa overheats/underheats
Temperature Sensor Fault (Water Probe Error)
F4
F4 error, pumps may not start or may shut off shortly after starting
Pump Overcurrent / Pump Relay Fault
F5
F5 displayed, circulation pump does not run or runs intermittently
Circulation Pump Fault / Low Flow
F6
F6 error, spa may shut down heating and pumps intermittently
Control Board Communication / Internal Fault
F7
F7 displayed, spa may not respond to keypad inputs or may lock up
Keypad / Topside Control Panel Fault
F8
F8 error, ozone or auxiliary device not functioning correctly
Ozone Generator / Auxiliary Output Fault
F9
F9 displayed, spa may not maintain set temperature or may shut down heater
Heater Relay / Heater Circuit Fault
HL
HL error, spa shuts down heater, may continue to run pumps
High Limit Trip / Dry Fire Protection
ICE
ICE or freeze warning on display, pumps may run automatically
Freeze Protection Mode
LOC
LOC or lock symbol on display, buttons do not respond
Keypad Lock / Child Lock Activated
OH
Display shows OH, spa shuts down pumps and heater, water feels very hot
Overheat Condition Detected
P1
P1 error, primary jet pump does not start or shuts off quickly
Pump 1 Control / Overload Fault
P2
P2 error, secondary jet pump not operating correctly
Pump 2 Control / Overload Fault
Sn1
Sn1 error, spa may not heat or may shut down
Sensor 1 (Water Temperature Sensor) Failure
Sn2
Sn2 error, spa may overheat or not regulate temperature correctly
Sensor 2 (High Limit or Auxiliary Sensor) Failure
— —
Display shows dashes or blank segments, spa not responding
Display / Communication Fault
Symptom
Air bubbles but little water flow from jets, especially after refill
Air Lock in Plumbing
Symptom
Aroma or air blower feature not working
Air Blower / Aromatherapy System Failure
Symptom
Display works but backlight is dim or flickering
Keypad Backlight / Low-Voltage Supply Issue
Symptom
Jets are weak or no water flow from jets even though pump runs
Low Jet Pressure / Flow Restriction
Symptom
LED lighting in spa not working or some zones out
Lighting Circuit / LED Module Failure
Symptom
Loud grinding or screeching noise from pump area when jets are on
Worn Pump Bearings / Cavitation
Symptom
Ozone bubbles not visible at ozone injection point
Ozone System Not Operating
Symptom
Pump hums but does not start, then may trip breaker
Seized Pump Motor / Start Failure
Symptom
Rattling or vibration noise from cabinet when pumps run
Cabinet Vibration / Loose Mounting
Symptom
Spa does not heat, temperature remains far below set point but pumps run normally
No Heat / Heater Failure
Symptom
Spa shell surface around jets shows discoloration or blistering
Surface Finish Degradation
Symptom
Spa trips GFCI or breaker immediately or shortly after turning on
Ground Fault / Short Circuit
Symptom
Spa will not power on at all, no lights or display on Villeroy & Boch control panel
No Power / Dead Spa
Symptom
Strong chemical or burning plastic smell from equipment bay
Overheating Electrical Component
Symptom
Topside control panel buttons unresponsive or intermittent
Keypad Membrane Wear / Moisture Ingress
Symptom
Water cloudy or foamy despite normal operation
Filtration / Water Quality Issue
Symptom
Water leaking from around jets in the Villeroy & Boch shell
Jet Body / Gasket Leak
Symptom
Water leaking from equipment bay under Villeroy & Boch spa
Plumbing Leak in Equipment Area
| Error Code | Symptom | Fault Type | Guide |
|---|---|---|---|
| COOL |
Display shows COOL, heater does not run until water warms slightly
|
Cool Water Protection / Anti-Freeze Mode | View Details |
| dr |
Display shows dr, heater disabled, spa may run pumps briefly then stop
|
Dry Heater / Low Water in Heater | View Details |
| dY |
dY error, spa indicates dry condition and shuts down heater
|
Dry Fire Protection / No Water Detected in Heater | View Details |
| F1 |
Control panel beeps and displays F1, spa will not start pumps or heater
|
Water Flow Fault / Pressure Switch Open | View Details |
| F2 |
Display shows F2 and heater does not operate, spa may run pumps but water does not heat
|
High Limit Sensor Open / Overheat Protection Triggered | View Details |
| F3 |
F3 displayed, heater cycles erratically or spa overheats/underheats
|
Temperature Sensor Fault (Water Probe Error) | View Details |
| F4 |
F4 error, pumps may not start or may shut off shortly after starting
|
Pump Overcurrent / Pump Relay Fault | View Details |
| F5 |
F5 displayed, circulation pump does not run or runs intermittently
|
Circulation Pump Fault / Low Flow | View Details |
| F6 |
F6 error, spa may shut down heating and pumps intermittently
|
Control Board Communication / Internal Fault | View Details |
| F7 |
F7 displayed, spa may not respond to keypad inputs or may lock up
|
Keypad / Topside Control Panel Fault | View Details |
| F8 |
F8 error, ozone or auxiliary device not functioning correctly
|
Ozone Generator / Auxiliary Output Fault | View Details |
| F9 |
F9 displayed, spa may not maintain set temperature or may shut down heater
|
Heater Relay / Heater Circuit Fault | View Details |
| HL |
HL error, spa shuts down heater, may continue to run pumps
|
High Limit Trip / Dry Fire Protection | View Details |
| ICE |
ICE or freeze warning on display, pumps may run automatically
|
Freeze Protection Mode | View Details |
| LOC |
LOC or lock symbol on display, buttons do not respond
|
Keypad Lock / Child Lock Activated | View Details |
| OH |
Display shows OH, spa shuts down pumps and heater, water feels very hot
|
Overheat Condition Detected | View Details |
| P1 |
P1 error, primary jet pump does not start or shuts off quickly
|
Pump 1 Control / Overload Fault | View Details |
| P2 |
P2 error, secondary jet pump not operating correctly
|
Pump 2 Control / Overload Fault | View Details |
| Sn1 |
Sn1 error, spa may not heat or may shut down
|
Sensor 1 (Water Temperature Sensor) Failure | View Details |
| Sn2 |
Sn2 error, spa may overheat or not regulate temperature correctly
|
Sensor 2 (High Limit or Auxiliary Sensor) Failure | View Details |
| — — |
Display shows dashes or blank segments, spa not responding
|
Display / Communication Fault | View Details |
| – |
Air bubbles but little water flow from jets, especially after refill
|
Air Lock in Plumbing | View Details |
| – |
Aroma or air blower feature not working
|
Air Blower / Aromatherapy System Failure | View Details |
| – |
Display works but backlight is dim or flickering
|
Keypad Backlight / Low-Voltage Supply Issue | View Details |
| – |
Jets are weak or no water flow from jets even though pump runs
|
Low Jet Pressure / Flow Restriction | View Details |
| – |
LED lighting in spa not working or some zones out
|
Lighting Circuit / LED Module Failure | View Details |
| – |
Loud grinding or screeching noise from pump area when jets are on
|
Worn Pump Bearings / Cavitation | View Details |
| – |
Ozone bubbles not visible at ozone injection point
|
Ozone System Not Operating | View Details |
| – |
Pump hums but does not start, then may trip breaker
|
Seized Pump Motor / Start Failure | View Details |
| – |
Rattling or vibration noise from cabinet when pumps run
|
Cabinet Vibration / Loose Mounting | View Details |
| – |
Spa does not heat, temperature remains far below set point but pumps run normally
|
No Heat / Heater Failure | View Details |
| – |
Spa shell surface around jets shows discoloration or blistering
|
Surface Finish Degradation | View Details |
| – |
Spa trips GFCI or breaker immediately or shortly after turning on
|
Ground Fault / Short Circuit | View Details |
| – |
Spa will not power on at all, no lights or display on Villeroy & Boch control panel
|
No Power / Dead Spa | View Details |
| – |
Strong chemical or burning plastic smell from equipment bay
|
Overheating Electrical Component | View Details |
| – |
Topside control panel buttons unresponsive or intermittent
|
Keypad Membrane Wear / Moisture Ingress | View Details |
| – |
Water cloudy or foamy despite normal operation
|
Filtration / Water Quality Issue | View Details |
| – |
Water leaking from around jets in the Villeroy & Boch shell
|
Jet Body / Gasket Leak | View Details |
| – |
Water leaking from equipment bay under Villeroy & Boch spa
|
Plumbing Leak in Equipment Area | View Details |
No matching codes found
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