Hello. I am new here and am hoping for some help. I just bought a used Lazboy hot tub. It's a 2015 model. It has two pumps. Pump one has two sppeds but pump two only has one or is only working on low speed. One section of jets do not work and I suspect the issue is the pump. I changed the fuse hoping that would solve the problem but it did not. When I reset the system by flipping the breaker I get a wrench symbol on the controller screen. I have not however been able to identify an error code. It has a Geko in.xe-5-11 pack. Any suggestions?