Re: Water pump relay location for a 1993 U280
Reply #3 –
Roland - My wiring diagram shows the water pump relay is on the 12 volt panel in the middle storage bay. The one behind the white fiberglass cover, where you also find the 3 big round 90 amp circuit breakers. There are also two vertical rows of circuit breakers. One row has 3, the other row has 4. In the row of 4, the bottom one is power for the water pump. Hopefully yours is the same...
In the photo, the panel is on the wall just to the right of the battery charger/converter: