Display shows SPCL; heater will not fire when spa mode is selected

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.

Possible Causes

SmartPool chemical sensor detecting high chlorine, Miswired chemical feeder interlock, Faulty chemical lockout relay

Chemical safety: High chlorine or low pH can damage the heater. Do not bypass chemical safeties.

Test water: Use a reliable test kit to check chlorine and pH levels. Correct any extreme values before attempting to run the heater.
Check chemical feeder: Ensure any inline chlorinator or salt cell is plumbed downstream of the SmartPool heater and that its interlock wiring is correct.
Inspect sensor: If equipped with a SmartPool chemical sensor, verify its cable and placement in the plumbing.

Medium 3/5

SmartPool Chemical Lockout Sensor

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