4630 wiring

glr62

Member
key switch off. turn light switch on ac fan rubs on low. shut light switch off key switch
on, thermostat off lights come on and ac clutch engaged. power to clutch and headlights
any time key switch on. bad light switch?
 
this all started after drain on evaporator plugged and operator got wet. two speed fan switch and sometimes right fan motor stops.
 
You have a bad ground connection between the SGB and the tractor chassis/battery ground.

I'm just taking a quick look here before bed after an LONG day, and I can't immediately remember what grounds the SGB around the rubber isolator mounts, but I'm sure someone more awake will chime in soon!
 

SGB ground wire is parts key 31
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