Prr
Michael Phelps Spas
Program or Configuration Error in Control Pack
Display shows Prr or PR and spa may not operate normally
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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
Corrupted control firmware, Incorrect dip switch or jumper settings, Control board failure, Power surge damage
How to Fix / Troubleshooting
Safety: Turn OFF power at the GFCI breaker.
- Reset the control pack: Leave power OFF for at least 5 minutes, then restore power and observe if Prr clears.
- Check dip switches/jumpers: Compare the dip switch or jumper settings on the control board to the configuration chart in the Michael Phelps Spas technical manual for your exact model. Correct any mismatched settings.
- Inspect for board damage: Look for burn marks, swollen components, or corrosion on the control board.
- Surge protection: If Prr followed a storm or outage, consider adding a whole-house or spa-specific surge protector.
If Prr persists after a full power reset and configuration check, the control pack likely needs professional repair or replacement.
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Repair Difficulty
Professional Required
5/5
Required Part
Control Pack / Main PCB
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