On/off button lights up but nothing else.Tried all the usual supects-float switch,door switch,on/off switch,start switch.Checked the pump,heater,water valve all ok.Theres 3 pressure switches on this baby and these all operate.However Ive no wiring diagram so Im down to having a punt at the problem-I suspect the program switch or a wiring harness.Customer’s one of those hard nosed business types that give you no mercy.Any help would be appreciated.