120 Volt Control Box

[Pat]

Took a lot of water on backing up to fetch a crab pot with the back door unlatched. After getting back to dock found that having the air conditioning breaker(just the breaker on main panel, I wasn't trying to run the air) on caused dock shore power breaker to trip. I'm wondering if the Air conditioning 120 Volt Control Box is low enough to have gotten water in it, and if so could it cause this problem. The water left a ring on the generator about 3" above the bottom. I'm sure that was when powering up the motor. As water would have been sloshing around down there.
If the control box is low enough that it might have gotten water how would I access it to check.
Also during this little adventure if I throttled up to much I would get black smoke coming out of the transom, any ideas what might have caused that?

Thank you for any help.

 

[Pat]

Guess this wasn't interesting enough to catch anyone's attention. I have found the controller. It's hidden behind the ac unit on the forward wall of the 1/2 berth. Only way to get to it is by pulling AC unit out. Beyond my skills or self flagellation limits. Hope writing this might trigger an insight for myself as it appears no one from the factory will be providing any feed back. The cable to the pump has 3 wires; white, black and green. Both the black and white are hot (120 volts 6.5 amps) when the switch breaker in main panel is on, this cable runs from the pump to the ac control box mentioned above. When checking continuity on the wires with main panel switch or breaker there is none. When checking continuity with the switch/breaker on between white and green it throws the shore power breaker. Anyone out there with insights it would be appreciated if they could share.
Thanks.

 

[CruisingElvinRay]

What boat do you have?


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[chicagosam]

Turn off that breaker to your AC.
You have a short on your pump.
No sea pump should be pulling 6.5 AC amps.
No sea pump should be pulling any amps unless your thermostat is calling for cooling.
Based on the testing, I cant tell where the problem is. Sounds like your breaker is working as it trips when touching your hot to the ground.

Is your dock shore pedestal breaker tripping or is it the main 30 amp breaker on your boats AC panel, ELCI ?

 

[Pat]

C28 2017. Guess I wasn't clear the pump is disconnected. Those readings are just on the wire going to the pump. Shore power is the breaker the trips.
Now for the good news. I had gotten a replacement pump, because I figured the old one had broken. In some ways I was right. But after installing new pump decided to check leads before wiring it in, which is when I posted earlier today.

After my post I hooked up old pump direct to a receptacle, got noise but no spin. I spun it a manually a few times and it worked. but seemed it was running backwards. I reversed the leads and it still spun the same direction. Weird right? Anyhow took old pump and wired it into boat. With the pump attached and A/C breaker in boat on, I got 120 to white and black had zip voltage. Turned on AC and pump ran fine. Made a temporary connection to new pump, and it also runs. I'm waiting until I get boat in water to make sure it's turning in the right direction and pumping water, before making permanent connections.
Not much of this makes any sense to me, but if it works, I won't worry about it.
Thanks for the feed back gentlemen.