I was having problems with my pool heater so I opened it up and noticed that many of the wires had melted and the ignition control module cover was melted as well. I grabbed my multi meter and tried to find the reason my heater was not coming on but decided I should replace the wire harness and the control module while I was in there (it is 14 years old and melting so why not).
I ordered a Honeywell S8610U which should be a direct replacement for my S8600F but after replacing all the wires and installing the new control unit I am not getting any spark and the PV light on my control board is not lit. The strange thing is that if I hook up my old S8600F everything works just fine, when I install the S8610U I get nothing. There is no LED status indicator flashing on the new unit, nothing and no PV light on the board. Hook up the old, melted unit and all is well.
I really would like to replace the old one since I know it will fail sooner or later but cannot get the new one to work...am I missing something?