My spa is displaying a Flo/No circulation code.

Make sure the water level is at least 1″ lower than the lowest headrest.
Also, make sure your filters are clean and in good condition. You can also test by removing them.
Make sure pump 1 is running at low speed.
Ensure to evacuate air in the piping by forcing the pumps to start using the circuit breaker (ON/OFF).

We will contact you within 24 hours.