Bilge Pump Problem

dpw-ct

Cadet
Joined
Aug 13, 2012
Messages
16
Every time I turn on my bilge pump on my 1996 cobalt 220 it runs for 2-3 seconds then trips the circuit breaker.

Any idea what to look at ? what might be wrong.
 

Silly Seville

Senior Chief Petty Officer
Joined
Dec 5, 2009
Messages
798
Re: Bilge Pump Problem

Welcome to iboats!

Check your wiring. Is it properly grounded or sitting in water with loose connections?

If there is debris in the pump itself (the rotating vanes) that may overload it too, although very unlikely.
I would check for loose, wet, corroded, badly grounded wires.
 

5150abf

Vice Admiral
Joined
Aug 12, 2007
Messages
5,808
Re: Bilge Pump Problem

I would look at a new bilge pump, if it is anywhere near as old as the boat it needs replaced anyhow.
 

tpenfield

Moderator
Staff member
Joined
Jul 18, 2011
Messages
18,137
Re: Bilge Pump Problem

Too little electrical resistance would cause the circuit breaker to pop out. As stated, your bilge pump is probably singing it's swan song, but you should check the wiring to make sure there is not a short circuit somewhere. The bad part would be if you replaced the pump and still had the circuit breaker problem. . .
 

dpw-ct

Cadet
Joined
Aug 13, 2012
Messages
16
Re: Bilge Pump Problem

Do you know what brand and model bilge pump a 1996 cobalt 220 would have. Any suggestions on what to get to replace it
 

UncleWillie

Captain
Joined
Oct 18, 2011
Messages
3,995
Re: Bilge Pump Problem

Unless you like wasting money replacing good parts, Get the current one out first and determine that it is actually bad! :D

The shotgun approach of just buying new parts based on a hunch gets expensive fast! :eek:

Who's to say the circuit breaker isn't the culprit? :confused:
 

EddiePetty

Lieutenant Junior Grade
Joined
Aug 25, 2008
Messages
1,008
Re: Bilge Pump Problem

...most bilge pumps that I have encountered are induction type motors; even a locked rotor should not draw sufficient current to trip the breaker. I highly suspect a faulty connection or wiring.
 
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