Help with 64 Overlander fan & light wiring, please!
Chances are. The wiring. Runs in the ceiling, down the center.
Have you located the fuse which feeds the fan in the bath, dining area and outside light?
Have you done a "continuity" test on all three devices?
For example: Can you read continuity between the two fans?
How about between the old fan and the outside light? You would have to check this at the light switch. Unless the switch is turned on.
You could connect a battery charger to the power wire in the bathroom fan and see if the other devices work. If so. That wiring is OK.
Are these the glass fuses with the old style fuse holders?
Do you have 12 volts on the load side of all of the fuses in the fuse panel?
What color is the power wire at the new fan location?
Is that color visible at the fuse panel?
Did you find any blown fuses?
Did you replace any fuses?
Old fuses can slowly cook and become disconnected from their end cap enough to where they won't carry a load but read good with a meter.
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