Think I might have figured it out. AUX2 had previously been used by the spa air blower, which has a 30 minute timer associated with it. When I switched AUX2 over to the 2 speed pump, I just set the AUX2 dipswitch to on. I think the system still had the 30 minute timer associated with AUX2. I turned the dipswitch off and renamed AUX2 something random and then turned the switch back on. Seems to have worked.