PF
Dynasty Spas Power Failure / Low Line Voltage Detected

Display shows PF or PFL, spa may not start or may reset unexpectedly.

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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, Loose connections in spa disconnect or breaker panel, Undersized wiring to Dynasty Spa control pack

How to Fix / Troubleshooting

Safety first: Turn off the spa breaker before inspecting electrical connections. Only qualified persons should open electrical panels.

  • Reset spa: Turn the GFCI breaker off for 30 seconds, then back on to clear transient PF errors.
  • Check supply voltage: Have a qualified electrician verify that the spa is receiving the correct voltage (typically 240V for Dynasty Spas) under load.
  • Inspect lugs: With power off, check that all field wiring connections at the control pack terminal block are tight and free of corrosion.
  • Correct wiring issues: If low voltage or loose connections are found, have them corrected to prevent damage to the control pack.
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Repair Difficulty

Hard 4/5

Required Part

Control Pack
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