I've been testing the camping equipment in my "new" '87 camper, and it has
all worked well thus far.  The only part I'm not sure about is the sink
pump.

I filled the tank and the indicator lights worked properly.  The two fuses
on the driver's pillar are intact, but the pump makes no sound when I turn
the knob.  The PO claims that she never used any of the camping equipment,
and it looks that way.  The wiring looks fine, so I'm wondering if there's
anything I can check before assuming the pump is bad.  The fridge and
stove work quite well, so I'm pretty happy as it is.

Thanks for the help.

David