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; the heater does not run until the 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 a dry condition and shuts down the heater.
Dry Fire Protection / No Water Detected in Heater
F1
Control panel beeps and displays F1; the spa will not start pumps or heater.
Water Flow Fault / Pressure Switch Open
F2
Display shows F2, and the heater does not operate; the spa may run pumps, but the water does not heat.
High Limit Sensor Open / Overheat Protection Triggered
F3
F3 is displayed; the heater cycles erratically, or the 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 the heater.
Heater Relay / Heater Circuit Fault
HL
HL error; spa shuts down the heater, but 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, and water feels very hot.
Overheat Condition Detected
P1
P1 error: The primary jet pump does not start or shuts off quickly.
Pump 1 Control / Overload Fault
P2
P2 error: The secondary jet pump is not operating correctly.
Pump 2 Control / Overload Fault
Sn1
Sn1 error: The spa may not heat or may shut down.
Sensor 1 (Water Temperature Sensor) Failure
Sn2
Sn2 error: The spa may overheat or not regulate temperature correctly.
Sensor 2 (High Limit or Auxiliary Sensor) Failure
— —
Display shows dashes or blank segments; the spa is not responding.
Display / Communication Fault
Symptom
Air bubbles but little water flow from jets, especially after a 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 are out.
Lighting Circuit / LED Module Failure
Symptom
Loud grinding or screeching noise from the pump area when jets are on.
Worn Pump Bearings / Cavitation
Symptom
Ozone bubbles not visible at the ozone injection point.
Ozone System Not Operating
Symptom
Pump hums but does not start, then may trip the breaker.
Seized Pump Motor / Start Failure
Symptom
Rattling or vibration noise from the cabinet when pumps run.
Cabinet Vibration / Loose Mounting
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
Strong chemical or burning plastic smell from the equipment bay.
Overheating Electrical Component
Symptom
The spa does not heat; the temperature remains far below the set point, but pumps run normally.
No Heat / Heater Failure
Symptom
The spa will not power on at all; there are no lights or display on the Villeroy & Boch control panel.
No Power / Dead Spa
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 the equipment bay under the Villeroy & Boch spa.
Plumbing Leak in Equipment Area
| Error Code | Symptom | Fault Type | Guide |
|---|---|---|---|
| COOL |
Display shows COOL; the heater does not run until the 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 a dry condition and shuts down the heater.
|
Dry Fire Protection / No Water Detected in Heater | View Details |
| F1 |
Control panel beeps and displays F1; the spa will not start pumps or heater.
|
Water Flow Fault / Pressure Switch Open | View Details |
| F2 |
Display shows F2, and the heater does not operate; the spa may run pumps, but the water does not heat.
|
High Limit Sensor Open / Overheat Protection Triggered | View Details |
| F3 |
F3 is displayed; the heater cycles erratically, or the 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 the heater.
|
Heater Relay / Heater Circuit Fault | View Details |
| HL |
HL error; spa shuts down the heater, but 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, and water feels very hot.
|
Overheat Condition Detected | View Details |
| P1 |
P1 error: The primary jet pump does not start or shuts off quickly.
|
Pump 1 Control / Overload Fault | View Details |
| P2 |
P2 error: The secondary jet pump is not operating correctly.
|
Pump 2 Control / Overload Fault | View Details |
| Sn1 |
Sn1 error: The spa may not heat or may shut down.
|
Sensor 1 (Water Temperature Sensor) Failure | View Details |
| Sn2 |
Sn2 error: The spa may overheat or not regulate temperature correctly.
|
Sensor 2 (High Limit or Auxiliary Sensor) Failure | View Details |
| — — |
Display shows dashes or blank segments; the spa is not responding.
|
Display / Communication Fault | View Details |
| – |
Air bubbles but little water flow from jets, especially after a 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 are out.
|
Lighting Circuit / LED Module Failure | View Details |
| – |
Loud grinding or screeching noise from the pump area when jets are on.
|
Worn Pump Bearings / Cavitation | View Details |
| – |
Ozone bubbles not visible at the ozone injection point.
|
Ozone System Not Operating | View Details |
| – |
Pump hums but does not start, then may trip the breaker.
|
Seized Pump Motor / Start Failure | View Details |
| – |
Rattling or vibration noise from the cabinet when pumps run.
|
Cabinet Vibration / Loose Mounting | 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 |
| – |
Strong chemical or burning plastic smell from the equipment bay.
|
Overheating Electrical Component | View Details |
| – |
The spa does not heat; the temperature remains far below the set point, but pumps run normally.
|
No Heat / Heater Failure | View Details |
| – |
The spa will not power on at all; there are no lights or display on the Villeroy & Boch control panel.
|
No Power / Dead Spa | 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 the equipment bay under the Villeroy & Boch spa.
|
Plumbing Leak in Equipment Area | View Details |
No matching codes found
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