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Bilge pumps, on-off-auto, Santego 3867

Anything related to the operation of your boat. Steering, Bilge Pumps, thru-hulls, bottom paint, etc.
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bobwhorn
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Vessel Info: 1989 Carver Santego 3867. Repowered with Cat 3116s in 1993.
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Bilge pumps, on-off-auto, Santego 3867

Postby bobwhorn » September 7th, 2023, 4:11 pm

Bilge pumps run in the On position. Do not run in Auto. Suspected bad float switch so cut the wires to one and tied them together. Still no go.
Any thoughts?
Bob

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g36
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Re: Bilge pumps, on-off-auto, Santego 3867

Postby g36 » September 8th, 2023, 8:12 am

If you have a switch with off in the middle and it's working as you described.
16941752952502677006926278474475.jpg
I suspect the 12v positive is not on the common terminal on the switch. Heres a simple diagram.
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1997 Carver 405
Crusader xli
The Black Pearl
Soddy Daisy Tn.
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km1125
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Re: Bilge pumps, on-off-auto, Santego 3867

Postby km1125 » September 8th, 2023, 8:26 am

There should be a separate breaker for the "auto" position and it might not be located in the main panel. Look around your main DC power switch to see if there are additional breakers there.
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ColRon
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Re: Bilge pumps, on-off-auto, Santego 3867

Postby ColRon » September 9th, 2023, 7:45 pm

You have two sets of breakers for the bilge pumps. One on the circuit breaker panel on the starboard side. There is also another set of breakers and switch’s for the bilge pumps in the bottom step at the battery selector switch.
Ron
1989 Carver Santego 3867
“Escape Plan”
Murray, KY

:usa:
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Topic author United States of America
bobwhorn
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Re: Bilge pumps, on-off-auto, Santego 3867

Postby bobwhorn » September 10th, 2023, 11:31 am

ColRon you nailed it. It was the switches in the bottom step. One question remains: WHY?
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Re: Bilge pumps, on-off-auto, Santego 3867

Postby km1125 » September 10th, 2023, 12:00 pm

Why what??

The location? Or why are there two? It's because the different breakers draw power from different places... one before the master switch and one after.
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Topic author United States of America
bobwhorn
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Joined: February 18th, 2023, 1:18 pm
Vessel Info: 1989 Carver Santego 3867. Repowered with Cat 3116s in 1993.
Location: Texas
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Re: Bilge pumps, on-off-auto, Santego 3867

Postby bobwhorn » September 10th, 2023, 1:07 pm

Why two was the question. Thanks for the clarification.

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