ClintonM

I checked the fuse- replaced it with one I know works and replaced the T92 pump2 relay. The pump is brand new and was wired as it was supposed to be using the manufacturer's example. I originally thought it was the pump that was bad but now I guess I know better. Could the issue be the control panel up top? Do you recommend for me to check grounding?

Thank You - I willl!

Circ pump is running fine but when I hit the control panel above and try to turn on the second pump all I get is a click.

That is the picture of the internal schematics. Thank You for any insight.

Yes- I will take a photo and post it tonight. Thank You!

My new display reads FLO indicating a flow obstruction. I believe this is an issue based on the fact that the two speed pump does not go into low speed on its own? I removed the filter and nothing changes. I can shut off the spa at the breaker and then it resets but a few minutes later it gives me the FLO message (please note that the FLOW switch has been replaced before and it is relatively new.) When the spa was working fine it would engage all of the pumps in succession during filtration cycle to agitate the water. ATM it only switches on Pump 1 to agitate the water. Second issue, Pump #2, a a single stage pump isn't functioning on the button press. I can hear the interlock click when the pump 2 button is pressed however the pump does not start. Pump 1 and 3 do turn on when switched on. Caveats- All of the pumps have been replaced. Motherboard is relatively new. I am attaching the manual to this post. Page 44 is specific to the wiring diagram. 2003_sundance_maxxus_owners_manual.pdf

I am having the same issue- can you provide some suggestions on solutions?