SmartPool Ignition sequence not initiated

Heater fan or inducer runs but there is no ignition attempt (no click, no spark, no gas)

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

Open safety circuit (pressure switch, high limit, rollout), Faulty SmartPool control board logic, Loose safety loop wiring

Overview: The control will not open the gas valve until all safety devices are confirmed closed.

Check display: Check the display for any small icons or text indicating open safety devices (FLO, HI, ROL), even if no error code is shown.
Inspect safety loop: With power off, trace the low-voltage safety circuit wiring (pressure switch, high limit, rollout) and ensure all connectors are secure.
Reset manual safeties: If your SmartPool model has manual reset high limit or rollout switches, press them once after the heater has cooled down.
Test again: Restore power and call for heat. If there is still no ignition sequence, the control board may not be detecting the safety loop as closed.

Hard 4/5

SmartPool Main Control Board

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