Pentair
Pentair Pool Pumps Error Codes
Complete list of fault codes and troubleshooting guides. Use the search below to find your specific error.
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ALARM
Pentair IntelliFlo / IntelliPro VS or VSF pump display shows “ALARM” with no additional code, pump will not start or shuts down.
General Protection Shutdown
Alarm 001
IntelliFlo3 VSF or newer Pentair variable speed pump shows “Alarm 001” on the display and stops.
Low Line Voltage / Brownout Condition
Alarm 002
IntelliFlo3 VSF or similar Pentair pump shows “Alarm 002” and will not run.
High Line Voltage / Overvoltage Condition
Alarm 003
IntelliFlo3 VSF or similar Pentair pump shows “Alarm 003” and shuts down.
Motor Overload / Overcurrent
Alarm 004
IntelliFlo3 VSF or similar Pentair pump shows “Alarm 004” and stops.
Drive Overtemperature
Alarm 005
IntelliFlo3 VSF or similar Pentair pump shows “Alarm 005” and will not start.
Internal Drive Fault
Alarm 006
IntelliFlo3 VSF or similar Pentair pump shows “Alarm 006” and stops.
Phase Loss / Motor Phase Fault (internal to drive)
Alarm 007
IntelliFlo3 VSF or similar Pentair pump shows “Alarm 007” and will not run.
Internal Communication Error
Alarm 008
IntelliFlo3 VSF or similar Pentair pump shows “Alarm 008” and stops.
Ground Fault / Leakage Current Detected
Alarm 009
IntelliFlo3 VSF or similar Pentair pump shows “Alarm 009” and will not start.
Configuration / Parameter Error
Comm Error
IntelliFlo / IntelliPro VS or VSF display shows “Comm Error” or automation panel reports communication loss with the pump.
RS‑485 Communication Failure
Drive Over Current
IntelliFlo / IntelliPro VS or VSF display shows “Drive Over Current” and pump shuts down.
Drive Output Stage Overcurrent
Drive Over Temp
IntelliFlo / IntelliPro VS or VSF display shows “Drive Over Temp” and pump shuts down.
Drive Electronics Overtemperature
ERR
Pentair IntelliFlo / IntelliPro VS or VSF pump display shows “ERR” and pump will not run or stops shortly after starting.
General Controller Fault
Over Current
IntelliFlo / IntelliPro VS or VSF display shows “Over Current” and pump stops or will not start.
Motor Overcurrent Protection Trip
Over Temp
IntelliFlo / IntelliPro VS or VSF display shows “Over Temp” and pump shuts down until cooled.
Drive or Motor Overtemperature Protection
Over Voltage
IntelliFlo / IntelliPro VS or VSF display shows “Over Voltage” and pump shuts down or refuses to start.
Line Overvoltage Protection
Priming Error
IntelliFlo / IntelliPro VS or VSF display shows “Priming Error” and pump stops or retries priming repeatedly.
Loss of Prime / Failed Priming Cycle
Under Voltage
IntelliFlo / IntelliPro VS or VSF display shows “Under Voltage” and pump will not start or runs erratically.
Line Undervoltage Protection
Symptom
Pentair SuperFlo VS or IntelliFlo pump keypad buttons are unresponsive or intermittent.
Keypad Button Failure
Symptom
Pentair SuperFlo VS pump displays power but motor does not start, and no specific error code is shown.
Failed Start / Internal Drive Fault
Symptom
Pump display is blank or unreadable, but motor still runs when controlled by automation.
Keypad/Display Failure
Symptom
Pump emits a burning smell or visible smoke from the motor or drive area.
Overheating / Electrical Failure
Symptom
Pump housing or plumbing is leaking at the unions connected to a Pentair IntelliFlo or SuperFlo VS pump.
Union Seal Leak
Symptom
Pump is leaking water between the motor and the pump housing (at the seal plate).
Mechanical Shaft Seal Failure
Symptom
Pump is running but there is no water movement in pool, pump basket not filling with water.
Loss of Prime / Air Ingress
Symptom
Pump is unusually loud with a low humming sound but does not move water effectively.
Partial Seizure / Rotor Lock or Low Voltage Stall
Symptom
Pump is very noisy with a loud grinding or screeching sound from the motor area.
Motor Bearing Failure
Symptom
Pump is vibrating excessively and moving slightly on the equipment pad.
Mechanical Imbalance / Mounting Issue
Symptom
Pump lid is difficult to remove or install, or air leaks appear around the lid on a Pentair pump.
Lid and O‑Ring Wear / Deformation
Symptom
Pump makes a loud cavitation or rattling noise and pump basket shows lots of air bubbles.
Cavitation / Suction Starvation
Symptom
Pump runs but has very low flow or weak return jets, even at higher RPM on Pentair IntelliFlo or WhisperFloXF VS.
Hydraulic Flow Restriction
Symptom
Pump runs but spa jets are weak when using a Pentair IntelliFlo or WhisperFloXF VS as a spa pump.
Insufficient Flow to Spa
Symptom
Pump runs but water appears cloudy or dirty despite normal operation.
Inadequate Filtration / Circulation
Symptom
Pump runs but water leaks from the drain plugs at the bottom of the Pentair pump housing.
Drain Plug Seal Leak
Symptom
Pump speed changes unexpectedly or does not follow the programmed schedule on Pentair IntelliFlo or IntelliFlo3.
Control Logic / Automation Override Issue
Symptom
Pump starts and then shuts off after a few seconds or minutes without displaying a specific error code.
Thermal Overload or Intermittent Electrical Fault
Symptom
Pump trips the breaker or GFCI immediately when turned on.
Electrical Short or Ground Fault
Symptom
Pump will not start at all, no lights or display on Pentair IntelliFlo / IntelliPro / IntelliFlo3 variable speed pump.
No Power / Dead Pump
| Error Code | Symptom | Fault Type | Guide |
|---|---|---|---|
| ALARM |
Pentair IntelliFlo / IntelliPro VS or VSF pump display shows “ALARM” with no additional code, pump will not start or shuts down.
|
General Protection Shutdown | View Details |
| Alarm 001 |
IntelliFlo3 VSF or newer Pentair variable speed pump shows “Alarm 001” on the display and stops.
|
Low Line Voltage / Brownout Condition | View Details |
| Alarm 002 |
IntelliFlo3 VSF or similar Pentair pump shows “Alarm 002” and will not run.
|
High Line Voltage / Overvoltage Condition | View Details |
| Alarm 003 |
IntelliFlo3 VSF or similar Pentair pump shows “Alarm 003” and shuts down.
|
Motor Overload / Overcurrent | View Details |
| Alarm 004 |
IntelliFlo3 VSF or similar Pentair pump shows “Alarm 004” and stops.
|
Drive Overtemperature | View Details |
| Alarm 005 |
IntelliFlo3 VSF or similar Pentair pump shows “Alarm 005” and will not start.
|
Internal Drive Fault | View Details |
| Alarm 006 |
IntelliFlo3 VSF or similar Pentair pump shows “Alarm 006” and stops.
|
Phase Loss / Motor Phase Fault (internal to drive) | View Details |
| Alarm 007 |
IntelliFlo3 VSF or similar Pentair pump shows “Alarm 007” and will not run.
|
Internal Communication Error | View Details |
| Alarm 008 |
IntelliFlo3 VSF or similar Pentair pump shows “Alarm 008” and stops.
|
Ground Fault / Leakage Current Detected | View Details |
| Alarm 009 |
IntelliFlo3 VSF or similar Pentair pump shows “Alarm 009” and will not start.
|
Configuration / Parameter Error | View Details |
| Comm Error |
IntelliFlo / IntelliPro VS or VSF display shows “Comm Error” or automation panel reports communication loss with the pump.
|
RS‑485 Communication Failure | View Details |
| Drive Over Current |
IntelliFlo / IntelliPro VS or VSF display shows “Drive Over Current” and pump shuts down.
|
Drive Output Stage Overcurrent | View Details |
| Drive Over Temp |
IntelliFlo / IntelliPro VS or VSF display shows “Drive Over Temp” and pump shuts down.
|
Drive Electronics Overtemperature | View Details |
| ERR |
Pentair IntelliFlo / IntelliPro VS or VSF pump display shows “ERR” and pump will not run or stops shortly after starting.
|
General Controller Fault | View Details |
| Over Current |
IntelliFlo / IntelliPro VS or VSF display shows “Over Current” and pump stops or will not start.
|
Motor Overcurrent Protection Trip | View Details |
| Over Temp |
IntelliFlo / IntelliPro VS or VSF display shows “Over Temp” and pump shuts down until cooled.
|
Drive or Motor Overtemperature Protection | View Details |
| Over Voltage |
IntelliFlo / IntelliPro VS or VSF display shows “Over Voltage” and pump shuts down or refuses to start.
|
Line Overvoltage Protection | View Details |
| Priming Error |
IntelliFlo / IntelliPro VS or VSF display shows “Priming Error” and pump stops or retries priming repeatedly.
|
Loss of Prime / Failed Priming Cycle | View Details |
| Under Voltage |
IntelliFlo / IntelliPro VS or VSF display shows “Under Voltage” and pump will not start or runs erratically.
|
Line Undervoltage Protection | View Details |
| – |
Pentair SuperFlo VS or IntelliFlo pump keypad buttons are unresponsive or intermittent.
|
Keypad Button Failure | View Details |
| – |
Pentair SuperFlo VS pump displays power but motor does not start, and no specific error code is shown.
|
Failed Start / Internal Drive Fault | View Details |
| – |
Pump display is blank or unreadable, but motor still runs when controlled by automation.
|
Keypad/Display Failure | View Details |
| – |
Pump emits a burning smell or visible smoke from the motor or drive area.
|
Overheating / Electrical Failure | View Details |
| – |
Pump housing or plumbing is leaking at the unions connected to a Pentair IntelliFlo or SuperFlo VS pump.
|
Union Seal Leak | View Details |
| – |
Pump is leaking water between the motor and the pump housing (at the seal plate).
|
Mechanical Shaft Seal Failure | View Details |
| – |
Pump is running but there is no water movement in pool, pump basket not filling with water.
|
Loss of Prime / Air Ingress | View Details |
| – |
Pump is unusually loud with a low humming sound but does not move water effectively.
|
Partial Seizure / Rotor Lock or Low Voltage Stall | View Details |
| – |
Pump is very noisy with a loud grinding or screeching sound from the motor area.
|
Motor Bearing Failure | View Details |
| – |
Pump is vibrating excessively and moving slightly on the equipment pad.
|
Mechanical Imbalance / Mounting Issue | View Details |
| – |
Pump lid is difficult to remove or install, or air leaks appear around the lid on a Pentair pump.
|
Lid and O‑Ring Wear / Deformation | View Details |
| – |
Pump makes a loud cavitation or rattling noise and pump basket shows lots of air bubbles.
|
Cavitation / Suction Starvation | View Details |
| – |
Pump runs but has very low flow or weak return jets, even at higher RPM on Pentair IntelliFlo or WhisperFloXF VS.
|
Hydraulic Flow Restriction | View Details |
| – |
Pump runs but spa jets are weak when using a Pentair IntelliFlo or WhisperFloXF VS as a spa pump.
|
Insufficient Flow to Spa | View Details |
| – |
Pump runs but water appears cloudy or dirty despite normal operation.
|
Inadequate Filtration / Circulation | View Details |
| – |
Pump runs but water leaks from the drain plugs at the bottom of the Pentair pump housing.
|
Drain Plug Seal Leak | View Details |
| – |
Pump speed changes unexpectedly or does not follow the programmed schedule on Pentair IntelliFlo or IntelliFlo3.
|
Control Logic / Automation Override Issue | View Details |
| – |
Pump starts and then shuts off after a few seconds or minutes without displaying a specific error code.
|
Thermal Overload or Intermittent Electrical Fault | View Details |
| – |
Pump trips the breaker or GFCI immediately when turned on.
|
Electrical Short or Ground Fault | View Details |
| – |
Pump will not start at all, no lights or display on Pentair IntelliFlo / IntelliPro / IntelliFlo3 variable speed pump.
|
No Power / Dead Pump | View Details |
No matching codes found
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