Onga Auto-Restart / Memory Configuration Issue

Pump will not restart after a power outage until manually reset.

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

Controller set to manual restart mode, firmware glitch, failed non-volatile memory on control board

Safety: Always ensure the pump area is safe before enabling auto-restart features.

Check settings: Refer to the Onga controller manual and verify that auto-restart or auto-priming after power loss is enabled if desired.
Firmware reset: Perform a full controller reset to clear glitches, then re-enter schedules and speed settings.
Observe behavior: Simulate a brief power loss and confirm whether the pump restarts as configured.

If the pump still requires manual intervention, the control board memory may be failing and should be replaced.

Medium 3/5

Onga pump control PCB

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