I recently bought a used 1538 hst. The previous owner wired in two different fuse holders. One for the a/c and one for the wipers. Wiper being the main feed and the a/c feeding from that. The issue im having is, it keeps on blowing the wiper fuse, and taking out the a/c compressor. On my second compressor now. Tried looking over the net for any type of wiring diagrams for this tractor, but haven't found anything. Would rather go by a diagram than start ripping apart harnesses. Any help would be appreciated.
1538 a/c and wiper diagrams
- Thread starter nimsicol
- Start date
You're having compressor failures and you think an added fuse holder is the the reason? What size fuse is in this fuse holder? If you remove this fuse, what A/C components stop working? The compressor clutch (if that's all the fuse supplies) will work just fine on a 5A or 7.5A fuse.
Its a 15 amp fuse for the a/c and 20 amp for the wiper. These 2 fuses were taken out by someone else from the original fuse holder. They installed a little bit bigger wire for the wiper fuse. Tied into that wire to another fuse holder and then a wire attached to 2 blue wires that run the hvac unit and the compressor. What im looking is a diagram to put it back to factory and see what it will do
and see if there is a short to something on either one of those circuits.
and see if there is a short to something on either one of those circuits.I'm not sure a wiring diagram is your answer. Faulty wiring doesn't make compressors fail. Problems in the wiring, shorts and/or partially grounded circuits will blow fuses, melt wires, burn connections, that sort of thing. If you have that going on, then you've got a problem. Just because someone made some changes to the fuse block doesn't lead me to believe that's the reason for any current problem. I see fuse blocks where the contacts behind them overheat due to poor connections. Circuits that supply power to motors (like wipers, blower fans, ETC) are prone to that. That results in blown fuses, and other heat related issues that require changes in the fuse holder itself. Was/is that a problem with your machine? Hard to say from out here since you haven't actually put forth any symptoms other than compressor failures. Which in itself is hard to judge without knowing more about how or why that occurred. I can't believe it has anything to do with fuse holders.