help - bilge pump wiring - in-line fuse?

Cheeky Monkey II

New Member
Oct 27, 2022
4
Boat Info
sea ray sun deck 270
Engines
496 mercruiser
Hi folks - any/all tips appreciated - 2007 sea ray sun deck 270 with 2 bilge pumps - one aft near engine - working fine and second one is separate compartment forward - noticed accumulation of water - luckily from washing the carpet and rain - replaced forward pump and float switch only to find there's no power detectable on incoming wires (2 for float, 2 for bilge) - checked fuse and connected the pump directly to the battery - it worked that way - so main question - is there an in-line fuse somewhere in the wiring? what other sources of the problem?
 
https://owners-resources.searayweb.com/owners-manuals-files/Owners Manual 2007 270 SUNDECK.pdf

Do you have a bilge pump switch on the dash (peanut pad)? If so do you get power at the pump/float if you turn it on?

Do you have these two bilge pump fuses next to your battery switches:

upload_2022-10-27_4-26-42.png
 
You mentioned you checked the fuse - and assuming you checked the correct one (that Phil was nice enough to post from your manual) - that is it. There would only be one fuse. Do you have power in/out at the fuse?

But, if you want track things down further, go into the wiring diagrams located in your manual.
 
Don’t forget the ground. Do you have a good ground at the pump harness connector?
 
Thank you Phil, Lazy and Espo - great reminder to check the in-line fuse - but it looks fine - yes there is a lack of ground at the pump / float harness - two pairs of wires. Need to check continuity at the fuse and the pump / float. I really appreciate the diagrams and guidance. When I get it fixed I’ll post the finding. My post etiquette may be off - and don’t want to post “nothing” - but just a thanks and I’ll keep trouble shooting. As I recall there’s no wire that goes between the float and the pump - it is simply one pair pump and pair float wires - true?
 

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