The bilge pump and blower might have a common return. Follow the (probably) black wires from the bilge pump and the blower to see whether you have a bad ground.
The blower on my boat has an in-line fuse, located close to the blower switch, if you want to check that out. Alan Bergen 35 Mk III Thirsty Rose City YC Portland, OR On Fri, Sep 27, 2019 at 6:31 PM bwhitmore via CnC-List < cnc-list@cnc-list.com> wrote: > Interestingly, I had a bilge pump issue and thought it was the pump and > then the switch and finally found the wires had corroded and broken at a > set of butt connectors hidden as the wires exited the bilge to run up to > the switch panel. > > Food for thought, > > Bruce Whitmore > 1994 C&C 37/40+ > Astralis > > > _ > >
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