Fuse is 16 amps but it will blow intermittently with ac on or off. My concern is that the water pump and fan work of this system. Currently I have a 8 amp fuse in place of the 16 amp and as long as I don't turn on the AC it's good. Originally I thought it was in the water pump system cause the 16 amp copper fuse would blow w/out ac on. I need a good source for a manual. Thanks