I turned up the seacock on to de-winterize the AC unit. then I went to turn power on and all well. Then I switched the AC water pump and breaker tripped. Did it 2-3 times same. There is quiet a bit of rust, not sure that has anything to do with, maybe loose wiring? It worked flawless last season. So there is power, when I turn AC power on power comes on behind the kitchen table. But trips when I turn the water pump for AC on.. Do I need to replace the whole pump? or the thing hanging from it? see pictures. Thanks guts in advance.AC Water Pump tripping breaker
- cpoint
- Commander

- Posts: 453
- Joined: April 20th, 2016, 1:00 pm
- Vessel Info: 2000 Carver 356 aft cabin
- Has thanked: 208 times
- Been thanked: 32 times
AC Water Pump tripping breaker
Here we go new season, new problem
I turned up the seacock on to de-winterize the AC unit. then I went to turn power on and all well. Then I switched the AC water pump and breaker tripped. Did it 2-3 times same. There is quiet a bit of rust, not sure that has anything to do with, maybe loose wiring? It worked flawless last season. So there is power, when I turn AC power on power comes on behind the kitchen table. But trips when I turn the water pump for AC on.. Do I need to replace the whole pump? or the thing hanging from it? see pictures. Thanks guts in advance.
I turned up the seacock on to de-winterize the AC unit. then I went to turn power on and all well. Then I switched the AC water pump and breaker tripped. Did it 2-3 times same. There is quiet a bit of rust, not sure that has anything to do with, maybe loose wiring? It worked flawless last season. So there is power, when I turn AC power on power comes on behind the kitchen table. But trips when I turn the water pump for AC on.. Do I need to replace the whole pump? or the thing hanging from it? see pictures. Thanks guts in advance.You do not have the required permissions to view the files attached to this post.
Last edited by cpoint on April 17th, 2017, 10:40 am, edited 1 time in total.
- g36
- Admiral

- Posts: 2115
- Joined: April 7th, 2014, 6:07 pm
- Vessel Info: 1997 Carver 405
- Location: Soddy Daisy TN.
- Has thanked: 7 times
- Been thanked: 654 times
Re: AC Water Pump tripping breaker
That's a capacitor in the box crazy amount of rust the pump is shorted there's probably a leak going on on the pump seal to the motor it would be best to replace the whole pump imo
1997 Carver 405
Crusader xli
The Black Pearl
Soddy Daisy Tn.
Crusader xli
The Black Pearl
Soddy Daisy Tn.
- mjk1040
- Admiral

- Posts: 1531
- Joined: July 30th, 2015, 8:15 am
- Vessel Info: 1998 355 AC/MY "Deja Vu"
- Location: Savannah, NY
- Has thanked: 9 times
- Been thanked: 248 times
Re: AC Water Pump tripping breaker
Yep! I think it's toast!
Mike
I'd Rather Be Boating!
1989 Sea Ray Seville
1986 Carver Mariner 32'
1990's Thompson 22' Cuddy Cabin
1990's 4Winns 245 Vista Cruiser
1980's Thompson 19' Open Bow
I'd Rather Be Boating!
1989 Sea Ray Seville
1986 Carver Mariner 32'
1990's Thompson 22' Cuddy Cabin
1990's 4Winns 245 Vista Cruiser
1980's Thompson 19' Open Bow
- waybomb
- CYO Moderator

- Posts: 2745
- Joined: February 5th, 2013, 9:24 pm
- Vessel Info: 1995 Boston Whaler Rage15
1987 3697 Carver Mariner
1988 Cougar 46 Kevlar Vee offshore
1969 15' Glasspar / 1967 Johnson Electromatic 85 - Location: Saint Joseph,Mi
- Has thanked: 69 times
- Been thanked: 492 times
Re: AC Water Pump tripping breaker
Capacitor is testable.
Disconnect power.
Take a screwdriver and short between the two connectors.
Now pull the wires off.
Get a an old analog meter like a Simpson..
Set to the middle range of ohns.
While watching the meter, touch both leads to the capacitors posts. Does not matter with which lead to which post. A good cap will show the meter move to the right, then sweep back to the left as it charges.
Now short the leads out again, if that's a good cap it will shock you if you don't short it out.
Note check each post to the case of the cap.
Should not see continuity.
I bet the cap is bad and can be bought at almost any heating and air conditioning shop.
Disconnect power.
Take a screwdriver and short between the two connectors.
Now pull the wires off.
Get a an old analog meter like a Simpson..
Set to the middle range of ohns.
While watching the meter, touch both leads to the capacitors posts. Does not matter with which lead to which post. A good cap will show the meter move to the right, then sweep back to the left as it charges.
Now short the leads out again, if that's a good cap it will shock you if you don't short it out.
Note check each post to the case of the cap.
Should not see continuity.
I bet the cap is bad and can be bought at almost any heating and air conditioning shop.
Thanks
Fred
1969 Glaspar Avalon /1967 Johnson Electromatic 85
1987 Carver Mariner
1988 Cougar Kevlar 46' with triple blown 572 ci
1995 Boston Whaler Rage
Past - 1988 2807, 1989 4207 Aft
Fred
1969 Glaspar Avalon /1967 Johnson Electromatic 85
1987 Carver Mariner
1988 Cougar Kevlar 46' with triple blown 572 ci
1995 Boston Whaler Rage
Past - 1988 2807, 1989 4207 Aft
- g36
- Admiral

- Posts: 2115
- Joined: April 7th, 2014, 6:07 pm
- Vessel Info: 1997 Carver 405
- Location: Soddy Daisy TN.
- Has thanked: 7 times
- Been thanked: 654 times
Re: AC Water Pump tripping breaker
Yes the capacitor can be tested but with all that rust there's something going on with pump seals I think it's going to still be a problem wat er and a 120v volt motor wont get along
1997 Carver 405
Crusader xli
The Black Pearl
Soddy Daisy Tn.
Crusader xli
The Black Pearl
Soddy Daisy Tn.
- cpoint
- Commander

- Posts: 453
- Joined: April 20th, 2016, 1:00 pm
- Vessel Info: 2000 Carver 356 aft cabin
- Has thanked: 208 times
- Been thanked: 32 times
Re: AC Water Pump tripping breaker
Thanks guys, i agree with you. Was not too expensive. So i ordered new pump. Looks like an easy swap. I'll update you guys nex week after replacing.
- RGrew176
- Admiral

- Posts: 6652
- Joined: August 17th, 2015, 4:07 am
- Vessel Info: 2023 SunTracker Party Barge 22 DLX
- Location: Southgate, MI.
- Has thanked: 72 times
- Been thanked: 470 times
Re: AC Water Pump tripping breaker
My A/C seawater pump died last summer. I ordered a new pump. Mine was a sealed unit most likely easier to replace than try to repair.
Rick Grew
2025 Godfrey Xperience 2286 SFLX
2004 Past Commodore
West River Yacht & Cruising Club
2025 Godfrey Xperience 2286 SFLX
2004 Past Commodore
West River Yacht & Cruising Club
- cpoint
- Commander

- Posts: 453
- Joined: April 20th, 2016, 1:00 pm
- Vessel Info: 2000 Carver 356 aft cabin
- Has thanked: 208 times
- Been thanked: 32 times
Re: AC Water Pump tripping breaker
One other question, is this just a connector (Y or T)? I looked online and cant find one exactly like it. Can I use a PVC T connector? I am talking about the T connection that's attached to the white part of the motor with one IN and 2 OUT hoses
You do not have the required permissions to view the files attached to this post.
- Midnightsun
- CYO Supporter

- Posts: 2984
- Joined: March 27th, 2016, 2:27 pm
- Vessel Info: The Midnight Sun
2007 41CMY
Volvo D6-370's - Location: Montreal, Canada
- Has thanked: 272 times
- Been thanked: 1193 times
Re: AC Water Pump tripping breaker
Yep, just a T connector to what I must assume is supplying 2 AC units. PVC will work fine as this is what is used in the picture. Personally I would come out of the pump with a single line and then a little farther away use a Y in place of a T as the flow will be less restricted. Something like this comes to mind, just need the correct size and glue in the hose barbs for your application. https://flexpvc.com/cart/agora.cgi?p=PV ... inc=detail
-
Viper
- CYO Supporter

- Posts: 6266
- Joined: July 10th, 2015, 9:58 pm
- Vessel Info: 1989 Carver 3807 Aft Cabin
- Location: Ontario, Canada
- Has thanked: 475 times
- Been thanked: 1791 times
Re: AC Water Pump tripping breaker
Why not use the current setup? Did it get damaged?
By the way, did you check to see if that unit is ignition proof?? On a tip from a distributor, I confirmed that not all the models of that type of pump are. Since that tip, I always check now and have found a few installations that were not safe for a gasoline engine compartment. To err on the side of caution, I go with sealed units now. Not only is there no guessing if they're safe, but they're submersible, so if you get water on them for what ever reason like during winterizing a system, you don't have to worry about it.
By the way, did you check to see if that unit is ignition proof?? On a tip from a distributor, I confirmed that not all the models of that type of pump are. Since that tip, I always check now and have found a few installations that were not safe for a gasoline engine compartment. To err on the side of caution, I go with sealed units now. Not only is there no guessing if they're safe, but they're submersible, so if you get water on them for what ever reason like during winterizing a system, you don't have to worry about it.