We have a hot tub with two pumps. Pump 1 went dead and I replaced it and noticed the other pump wasn’t doing to good. So after a few week I got both pump replaced and in the tub. The pump is wired correctly and has been tested by my local pool supply store. The problem I’m having is pump 1 has no low speed. High works and everything else works. The board comes on.. you can hear the relays clicking, in fact you can see them. But still no low speed on the pump. But again… bench test the pump works on both speeds. I’m totally at a lose. It’s a Marquis spa tub from 1997