I bought a used hot tub and am trying to get it running before my wife kills me. It is beginning to snow and it is very cold...need help pronto. It is a 1992 Sundance Rio, single pump, with a Sundance 400 series topside. I fixed a broken air manifold and busted jet,filled with water and then connected power to it. At first only the light would turn on and off...nothing else. I remembered the interlocks on the door so I connected them and tried the controls. I could not change modes, the heat light wouldnot come on regardless of thermostat setting, the jets would not fire, but the air blower did work. I started rotated the dial on the control box. When it hit certain points, the pump did start and circulate the water. I tried the jets and mode button and they still did not work. Also, now the spa light was on and would not respond...I could not turn it off now. I noticed the wires to the flow sensor on the heater were broken so I spliced them back togeter. I tried jumping the flow sensor and that did not change things. I read that I should try jumping the temp sensor out so I did that (while using the dial to run the pump) and as soon as I jumped across the wires, the pump shut off and the heat light came on(althought it wasn't heating). When I removed the jumper, the pump would start back up after 5 seconds or so. The only control I seem to have from the topside is the air blower althought I know the light worked when I first hooked it up. I have power at the line in on the board for the heater but no power at the heater itself. Am I missing something....a bad sensor somewhere, is my topside control cooked. Please tell me how to bypass some of these sensors and try to get something going. I am outside every day refilling the tub in below zero temperatures, testing it, and draining it at the end of the day. What do I do....please some suggestions(saying don't buy a used hot tub has already been given thanx)

Just an update...I am having concerns that the wiring may be part of the problem. The old wiring connection was just cut off outside the box so for simplicity I connected to these with mar connectors since I was just checking it out. Today I was looking at it and noticed that the wiring diagram inside the cover did not match the board. I realize now that the board is out of a 94 Calypso. On the existing wires that I connected to, I realized that the ground wire was not connected to the ground bar but directly to the air blower. What was connected to the ground bar was the neutral white. All the neutral and grounds in the panel were connected to the same ground bar. There is a neutral bar but nothing was connected to it. I am thinking that whoever changed the boards in this tub made some errors which I hope are causing my problems...any ideas on this. We currently have 6 inches of snow outside so I won't be messing around with refilling and reconnecting it until I have some ideas.