Replaced damaged AC panel. Furnace start up. Cycled system. Checked electrical components and clamps, both tight. Checked incoming LP pressure. Found pressure to be 11.25. There is the water heater and furnace that are LP in the home, as of now. This pressure may cause issues with it being lower than recommend for full operation of both pieces of equipment. Set outgoing pressure to 9.5 IWC. Checked venting. Customer had water leaking from exhaust venting. He fixed it himself with no more leaks at this time. This was existing venting not installed by us. CO and XS air in exhaust was normal. No CO in airstream. Temp rise was 45. System operating normal at this time. Job complete.