Have a new (new to me) 1984 Sundance Royale. Skirt was all rotted, completely rebuilt and setup. Had the Electrician out, installed a breaker in the house circuit box that runs outside to a GFCI box then to the tub itself. Everything powers on and the tub is currently in use. However, I still think something is amiss.

The jets and air cannot run at the same time or the 20 button pops out...it is labeled as a general system fuse. Running the jets or air separate it operates normallly.

The two neon lights on the front of the control box do not come on and stay on at the same time. They both do work though as I have seen each of them come on while flipping the breaker, pushing in the 20 button, etc.

I'm going to try include a picture in my post of the control box to help diagnose.

do you have any pictures of where the grey wires from the control unit connect to.