Pahlen

Pahlen 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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E01
Digital control on Pahlén pool pump controller shows E01 and pump will not start
Low/No Water Flow Protection Triggered
E02
Pahlén pool pump controller displays E02 and motor hums but does not run
Overcurrent / Locked Rotor Protection
E03
Pahlén variable-speed pool pump shows E03 and stops shortly after starting
Overheating / Thermal Protection Trip
E04
Controller for Pahlén pool pump displays E04 and pump will not run
Phase Loss / Supply Voltage Fault (Three‑Phase Models)
E05
Pahlén variable-speed pool pump shows E05 and runs only at reduced speed or not at all
Motor Overload / Overcurrent on Variable-Speed Drive
E06
Pahlén pump controller displays E06 and pump stops intermittently
Flow Sensor / Pressure Switch Fault
E07
Pahlén pool pump controller shows E07 immediately on power-up
Internal Control Board Communication Error
E08
Pahlén variable-speed pump shows E08 and will not accept speed changes
External Control Signal Fault (Automation / Modbus / 0–10 V)
E09
Pahlén pump controller displays E09 and pump stops after a few seconds
Dry-Run Protection / No Prime Detected
E10
Pahlén pool pump controller shows E10 and pump will not start after a power outage
Undervoltage / Low Supply Voltage
E11
Pahlén variable-speed pump displays E11 and stops when ramping up speed
Overvoltage on DC Bus (Drive Fault)
E12
Pahlén pump controller shows E12 and the display is blank or flickering
Low Control Voltage / Auxiliary Power Fault
E13
Pahlén pump controller intermittently shows E13 and stops unexpectedly
Earth Leakage / Ground Fault Detection
E14
Pahlén pump controller shows E14 and ignores start commands from external timer
Scheduling / Real-Time Clock Error
E15
Pahlén pump controller shows E15 and pump speed fluctuates erratically
Speed Feedback / Tachometer Fault (VS Models)
Symptom
Pahlén pool pump does not respond to automation system commands but runs manually
Control Interface / Communication Issue
Symptom
Pahlén pool pump emits a burning smell or visible smoke
Motor or Wiring Overheating
Symptom
Pahlén pool pump is installed with a Pahlén heat exchanger and flow through the heater is insufficient
Insufficient Flow Through Heat Exchanger
Symptom
Pahlén pool pump is leaking water between the pump housing and the motor
Mechanical Shaft Seal Failure
Symptom
Pahlén pool pump is running but is very noisy with a rattling or cavitation sound and visible air in the pump lid
Cavitation / Air Ingress on Suction Side
Symptom
Pahlén pool pump is unusually hot to the touch but still running
Overheating Under Load
Symptom
Pahlén pool pump is very loud with a high-pitched whine, especially on variable-speed models
Drive/Motor Acoustic Noise
Symptom
Pahlén pool pump lid is difficult to remove or install, and may leak after servicing
Lid Thread / Clamp Binding
Symptom
Pahlén pool pump loses prime overnight and must be manually primed each day
Suction-Side Air Ingress / Drain-Back
Symptom
Pahlén pool pump makes a loud grinding or screeching noise while running
Motor Bearing Failure
Symptom
Pahlén pool pump runs but the pressure on the filter gauge is unusually high
High System Backpressure
Symptom
Pahlén pool pump runs but the pressure on the filter gauge is very low and suction at skimmer is weak
Suction Restriction / Air Leak
Symptom
Pahlén pool pump runs but there is sand or debris returning to the pool
Filter Bypass / Internal Filter Fault
Symptom
Pahlén pool pump runs but there is very low water flow at the pool returns
Hydraulic Restriction / Low Circulation
Symptom
Pahlén pool pump runs but water appears cloudy and circulation seems poor over time
Inadequate Filtration / Undersized Runtime
Symptom
Pahlén pool pump speed or flow changes when other large electrical loads in the house turn on
Supply Voltage Fluctuation / Drop
Symptom
Pahlén pool pump starts but shuts off after a few minutes and then restarts after cooling
Thermal Overload Cycling
Symptom
Pahlén pool pump trips the circuit breaker or RCD/GFCI shortly after starting
Electrical Short or Ground Fault
Symptom
Pahlén pool pump vibrates excessively and moves on its mounting base
Imbalance / Misalignment
Symptom
Pahlén pool pump will not start at all, no humming, but power is available at the equipment pad
No-Start Electrical Fault
Symptom
Water is leaking from the clear lid area of the Pahlén pool pump
Pump Lid Seal Leakage
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