The aft shower/tub sump pump stopped working, it is not powered. There is power at the dc panel for the circuit, but no power to the pump or the manual on switch in the head. Both of the other shower sumps are working fine. Recently replaced both the pump and the float switch in the sump and they have been working fine until now?!?...
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Thread: Shower sump pump has lost power
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Shower sump pump has lost power
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07-05-2020 03:52 AM #2
Re: Shower sump pump has lost power
If you have an '80s motor yacht you may find the issue is corroded wiring/terminals at the sump terminal bar located via a hatch under the mattress.
On my boat the terminal bar sits above the sump tray. When I had the same issue I found the connections were green with corrosion and failed terminals. Because there was so little access and the Hatteras wiring was so short, I direct connected the wires and heat shrank it all. Works perfectly 5 years now.Last edited by scottinsydney; 07-05-2020 at 03:57 AM.
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1984 61MY #353 with 9' cockpit extension.
Sydney, Australia.
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Re: Shower sump pump has lost power
Did you check for power with a meter at the wires bringing power to the terminal strip?
If not, Are the other sumps on the same breaker? If so there must be a connection somewhere Between the breaker and the sumpsPascal
Miami, FL
1970 53 MY #325 Cummins 6CTAs
2014 26' gaff rigged sloop
2007 Sandbarhopper 13
12' Westphal Cat boat
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Re: Shower sump pump has lost power
Float switches are notorious
Semper Siesta
Robert Clarkson
ASLAN, 1983 55C #343
Charleston, SC
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Re: Shower sump pump has lost power
I have the same setup on my 1983 61’ CPMY. The terminal bar looks pretty bad but when I jump across it with a meter I don’t get any voltage. I also don’t get any voltage at the switch terminal bar in the vanity cabinet. I do get voltage out of the aft sump breaker in the main DC panel in the Port engine room. So the power is being interrupted somewhere between the breaker and the sump terminal bar ?!?
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07-06-2020 06:55 PM #6
Re: Shower sump pump has lost power
The DC supply wires attaching to the terminal strip on mine were so badly corroded some of the connectors fell off. Try to get clean wire and test or punch through the DC supply wire sheathing with multimeter or sturdy pin. Terrible location for terminal strip on mine.
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1984 61MY #353 with 9' cockpit extension.
Sydney, Australia.
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Re: Shower sump pump has lost power
Do you have power on the output side of the breaker? Then find the negative wire near the pump and the positive feed and check for power there. There may a terminal strip somewhere between the panel and the sump.
Pascal
Miami, FL
1970 53 MY #325 Cummins 6CTAs
2014 26' gaff rigged sloop
2007 Sandbarhopper 13
12' Westphal Cat boat
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07-07-2020 12:54 AM #9
Re: Shower sump pump has lost power
Try looking in the rear of the bathroom cabinet. You may find a set of big distribution terminal strips with wires that lead to the sump switch and pump.
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1984 61MY #353 with 9' cockpit extension.
Sydney, Australia.
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Re: Shower sump pump has lost power
On my boat, the aft sump terminal is located adjacent to the sink under the cabinet behind an access panel. It is not getting power from the main panel in the stbd engine room. I rewired it from the stbd dc light terminal, also located in the cabinet. Now it is getting power and the sump pump and float are working.