New to the hot tub/spa life. I have a 2002 Pacific Hot tub that I got in exchange for a service. Wondering where I would post for the issue that I am getting.
Once the tub heats up it goes into flow error. I have removed the filter and open the pressure switch. I also opened all the knife values and removed the filter. Jets seam to be working fine during heating with the second pump on high. Any ideas on where to start diagnosing? It has a Balboa circuit board model PHT-400.