nomansland

What do you mean by changed voltages ? Did he change the spa between 220V and 110V? If so why not change it back.

I was given a Sundance spa with a Sentry 800 controller. The unit does not work and I would like to find the schematic for the controller board. I have found a pdf of the controller manual on the sundance site. http://www.sundancespas.com/Communications/InstructionManuals/91_92800Man.pdf It has a diagram on how to hook up the controller but no schematic of the controller PCB.