Hey guys long time troller, first time poster. I have a ICP 15 Ton Packaged Gas unit that keeps popping fuses. First I thought it was a compressor issue but it did it in heat mode too. I took one compressor off line by disconnecting low voltage to one contactor and it lasted a little longer (2 weeks or so) then popped. In straight heat it popped. I am assuming its something to do with a part that runs in both modes heat and cool? Could it be a blower motor relay or something? I disconnected the Tstat and it still popped. Fuse is correct 5A and I have swapped parts around since it has 2 of everything other than Main board. Could this be a main board issue? Short of starting to swap parts blindly I really dont know whats going on with it. This one got me good!
Model # PGS180H300AB