PF
Tuff Spas
Power Failure / Voltage Interruption
Display shows PF or PWR FAIL; spa resets unexpectedly or loses settings.
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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
Loose connections at GFCI breaker, Undersized or long power run to Tuff Spas, Nuisance tripping of GFCI, Internal control pack power supply issue
How to Fix / Troubleshooting
Safety: Only work inside the main electrical panel or GFCI if you are qualified. Otherwise, call an electrician.
- Step 1 – Check GFCI: Inspect the spa’s GFCI breaker. Reset it fully OFF then ON. Ensure it is not warm or buzzing.
- Step 2 – Inspect spa power connections: With power off and locked out, have a qualified person check that all lugs in the spa’s control pack are tight and free of corrosion.
- Step 3 – Monitor for recurrence: If PF appears frequently, voltage may be unstable or the control pack’s power supply may be failing.
Persistent power faults should be evaluated by a licensed electrician and spa technician.
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Repair Difficulty
Hard
4/5
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