2011mountian air. Chassis battery's go overnight with master switch turned off I can take 60 amp fuse out at the battery box an it is ok , house battery's are ok , what could could keep a ngative pull...
if the contacts are stuck closed, its the same thing as the disconnect switch being in the power on mode all the switch does is control the relay/solenoid
i think i would check that starter circuit, starter relay/solenoid and the starter motor it self