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post #1 of 10 Old 05-08-2010 Thread Starter
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Bilge pump doesnt work

we just purchased a 74 Pearson 30. Eveything works EXCEPT bilge pump. I turned on switch and nothing happened. Any ideas as to diagnosis process? thanks!
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post #2 of 10 Old 05-08-2010
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Did you have it surveyed? No one showed you the in and out of this boat when you bought it? is there water in the bilge? Does the pump have a float switch or one built into it? is there power?

Denise, Bristol PA, Oday 30. On Tidal Delaware River, Anchor Yacht Club.
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post #3 of 10 Old 05-08-2010
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An essential piece of equipment on any boat is a voltmeter. Check voltage AT the pump. If you have 12V there, you know the pump/switch is/are bad. If no 12V, you know the problem. In either case, a voltmeter is one of the fundamental tools onboard.
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post #4 of 10 Old 05-08-2010 Thread Starter
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thanks Denise. How do we diagnose whats wrong. We did have a survey done to check hull integrety. Most other stuff we know since we have owned sailboats for 20+ years (I dont lie about my age, Im only 29--lol). Never had an electic bilge problem before. We have power..new batteries..everything else works.
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post #5 of 10 Old 05-08-2010
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Find the pump wires, make sure the float switch is "up" connect a volt meter or even a light bulb to the wires, if you have power there good,, and pump doesn't work, some get the impeller stuck with debris, motor itself may be stuck, A new one isn't expensive

I actually don't lie bout my age.. no one believes my real age when I tell em!

Denise, Bristol PA, Oday 30. On Tidal Delaware River, Anchor Yacht Club.
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post #6 of 10 Old 05-08-2010
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With a Volt meter:
Check for power at the switch.
Check for power at the bilge pump wire leads.
check the bilge pump for resistance (ohm meter)

Power going through the switch. Switch off, no power. Switch on power. all is good.
Power at the bilge pump wire leads, Good. No power? run new wires.
That will leave the bilge pump its self. Most you just replace the whole unit. A prime opportunity to upgrade to a larger one. But if it is the type you can repair, then open it up and see what you can do.
Usually if it is the bilge pump and not a clogged pickup hose or discharge hose you will need to replace it. Clogged hoses can cause the pump to burn out.
so keep trash, rags, paper towels and clothing out of the bilges

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post #7 of 10 Old 08-02-2013
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Question Re: Bilge pump doesnt work

I have the same issue and my manual bilge pump is also failing. I plan on disassembling manual today and hopefully running through all the tests listed here, however, I'm not as familiar with electric, so if anyone has any idea if 3 wires with one clipped and just sitting in the bilge water is ok, please let me know. The previous owner was planning on replacing the automatic bilge pump, which I'm fine with, just don't want to buy a new one and find that I have all the other problems.

Any advice?
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post #8 of 10 Old 08-02-2013
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Re: Bilge pump doesnt work

I suspect there is also an inline fuse somewhere, check that as well. Make sure if you find it, that it is the correct fuse for your particular pump. I had a similar problem when I bought my Catalina 27 with the bilge pump. Discovered that the fuses were under rated for that particular pump. Good luck, there is always an answer, sometime just a bit tough to find it.
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post #9 of 10 Old 08-02-2013
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Re: Bilge pump doesnt work

First see if there is power to the pump, if you have power to the pump you know it's the pump.
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post #10 of 10 Old 08-02-2013
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Re: Bilge pump doesnt work

Quote:
Originally Posted by deniseO30 View Post
I actually don't lie bout my age.. no one believes my real age when I tell em!
You can count me in that camp.

- Jim
Home: Western Philly 'burbs
1980 Allmand 31
1975 Albacore 15


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