SPPS
SmartPool Water pressure switch calibration fault

Heater cycles on and off rapidly; display intermittently shows SPPS

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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

Incorrectly adjusted SmartPool pressure switch, Marginal water flow near switch threshold, Debris in pressure switch port, Failing pressure switch contacts

How to Fix / Troubleshooting

Warning: Do not permanently jumper the pressure switch; this defeats a critical safety.

  • Improve flow margin: Increase pump speed slightly and ensure filter and skimmer baskets are clean so the pressure switch sees solid flow.
  • Inspect switch tubing/port: With power off, remove the small tube or fitting feeding the pressure switch on the SmartPool header. Clear any debris or scale buildup.
  • Check adjustment (if adjustable): Some SmartPool switches have an adjustment screw. Only make small 1/8-turn changes, following the service manual, to prevent the heater from running with no flow.
  • Replace if unstable: If SPPS continues despite good flow, replace the SmartPool water pressure switch.
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Repair Difficulty

Medium 3/5

Required Part

SmartPool Water Pressure Switch
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