Prr
Beachcomber Pressure Switch or Flow Switch Fault

Display shows Prr or PR, spa may not heat and may limit pump operation.

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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

Stuck or failed pressure/flow switch in heater manifold, Loose wiring to pressure switch, Incorrect pressure switch adjustment, Low flow due to dirty filter or weak pump

How to Fix / Troubleshooting

Safety: Turn off power at the GFCI before accessing the control pack or heater.

  • Clean filter and check flow: Remove and clean the Microfilter cartridge. Ensure strong flow from the heater return when pumps run.
  • Inspect pressure switch wiring: Locate the pressure or flow switch on the heater manifold. Check that the spade connectors are tight and free of corrosion.
  • Check for stuck switch: Gently tap the body of the pressure switch with a non-metallic tool to free a stuck internal plunger.
  • Reset power: Restore power and observe if Prr clears. If it returns, the switch may be defective.

Do not bypass the pressure switch, as it is a critical safety device. Replace it with a Beachcomber-compatible pressure/flow switch if faulty.

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Repair Difficulty

Medium 3/5

Required Part

Heater pressure/flow switch
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