Display shows F1, filtration cycle or circulation pump not operating as expected.

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

Incorrect filter cycle programming, Failed circulation pump, Control pack timing fault, Dirty filter causing overheat and shutdown

Safety: Turn off power before accessing the equipment bay.

Review filter settings: Consult the QCA Spas user manual for your model and verify the F1/F2/F3 filtration settings. Adjust to a standard cycle (e.g., 2 hours twice daily).
Check circulation pump: Ensure the small circulation pump runs during filtration. If it is silent or hot to the touch, it may be seized.
Clean filter: A clogged filter can cause the pump to overheat and shut down during filtration. Clean or replace the filter cartridge.

Medium 3/5

Circulation Pump

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