PF
Jacuzzi Power Failure or Line Voltage Error

Display shows PF or PFL and spa may shut down unexpectedly or not respond to controls.

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Safety Warning

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

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Possible Causes

Recent power outage or brownout, Loose connections at terminal block, Incorrect supply voltage, Failing control board power supply

How to Fix / Troubleshooting

Safety: Only qualified persons should open the control box. Turn off power at the main breaker before removing the cover.

  • Confirm power: Check that the GFCI breaker is fully ON and not tripped. Reset if necessary.
  • Inspect wiring: With power off, verify that the incoming power wires are tight at the control box terminal block and show no signs of overheating.
  • Verify voltage (advanced): Using a multimeter, confirm that the correct voltage (typically 240V for Jacuzzi spas) is present at the input terminals.
  • Power cycle: Turn power off for 5 minutes, then back on to reset the control.

If PF persists with correct supply voltage, the control board's power supply section may be failing and should be replaced by a technician.

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Repair Difficulty

Hard 4/5

Required Part

Control Board
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