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Trouble shooting AC on 3697

Discussion of AC's, plumbing and sanitation related issues.
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woodyboater
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Vessel Info: 1985 Carver Mariner 3697, Twin Crusader 454, Grand Lake of the Cherokees, OK

Trouble shooting AC on 3697

Postby woodyboater » July 20th, 2015, 8:47 am

We got on the boat Fri evening and turned on the AC and both units started cooling. Went outside and sat and started some cleaning and when we went back in the main salon unit had quit. No life. Checked the breaker and it is working. Checked the inline fuse behind the switch and it is good. Any suggestions?
1985 Carver Mariner
1959 Chris Craft 18' Continental
1956 Chris Craft 15' Cavalier

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waybomb
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Vessel Info: 1987 3697 Carver Mariner
1988 Cougar 46 Kevlar Vee offshore
1969 15' Glaspar / 1969 Johnson Electrmatic 85
1964 Barron Flat bottom drag boat
A couple of dinghies
Location: Saint Joseph and Trenton, MI
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Re: Trouble shooting AC on 3697

Postby waybomb » July 20th, 2015, 12:01 pm

The breaker is working, meaning, you checked volts with a vom at the breaker and at the ac unit?
Thanks
Fred
1964 Barron Flatbottom with BBC Chevy
1969 Glaspar Avalon /1969 Johnson Electromatic 85
1987 Carver Mariner
1988 Cougar Kevlar 46' with triple blown 572s
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Re: Trouble shooting AC on 3697

Postby Viper » July 20th, 2015, 8:14 pm

I agree with Fred. Back to basics and ensure there is power at the unit before you go any further.
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woodyboater
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Vessel Info: 1985 Carver Mariner 3697, Twin Crusader 454, Grand Lake of the Cherokees, OK

Re: Trouble shooting AC on 3697

Postby woodyboater » July 23rd, 2015, 12:10 pm

Thanks for the replies.
Was trying to check power at the switch but couldn't get any results across any of the switch connections or the wire spade connectors. My meter didn't have continuity capability so I bought another one that does have. I'll check the switch for continuity this weekend. Inside the blue power box, is there a fuse similar to a house AC unit?
1985 Carver Mariner
1959 Chris Craft 18' Continental
1956 Chris Craft 15' Cavalier
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Topic author
woodyboater
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Posts: 4
Joined: July 20th, 2015, 8:38 am
Vessel Info: 1985 Carver Mariner 3697, Twin Crusader 454, Grand Lake of the Cherokees, OK

Re: Trouble shooting AC on 3697

Postby woodyboater » July 26th, 2015, 8:22 am

Got to the boat Fri nite and girl friend had the V-Berth AC running. Thought I would see if the main salon would run. Turned it on and it started up and compressor started cooling. Thought it might have gotten too cold and froze up so I turned the temp up and the compressor stopped. I thought 'oh crap' and (without thinking) immediately turned the temp down. As the compressor started something clicked (like a rest button) and the unit went off. Is there another breaker/reset button someplace other than the main elect panel?
1985 Carver Mariner
1959 Chris Craft 18' Continental
1956 Chris Craft 15' Cavalier
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United States of America
waybomb
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Posts: 1964
Joined: February 5th, 2013, 9:24 pm
Vessel Info: 1987 3697 Carver Mariner
1988 Cougar 46 Kevlar Vee offshore
1969 15' Glaspar / 1969 Johnson Electrmatic 85
1964 Barron Flat bottom drag boat
A couple of dinghies
Location: Saint Joseph and Trenton, MI
Has thanked: 41 times
Been thanked: 283 times

Re: Trouble shooting AC on 3697

Postby waybomb » July 26th, 2015, 11:37 am

I can't imagine there would be two protection devices.
I think my next step would be to look for electrical terminations in the area where you heard the click. Could be loose/corroded wires.
(turn the electric off first!)
Thanks
Fred
1964 Barron Flatbottom with BBC Chevy
1969 Glaspar Avalon /1969 Johnson Electromatic 85
1987 Carver Mariner
1988 Cougar Kevlar 46' with triple blown 572s
http://s4.beta.photobucket.com/user/waybomb/library/
Past - 1988 2807, 1989 4207 Aft

Canada
Viper
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Re: Trouble shooting AC on 3697

Postby Viper » July 26th, 2015, 8:28 pm

If i'm reading you right; the compressor was running, then you shut it off, then you asked it to come back on again right away. If that's the case, the clicking you heard is the compressor's cutout kicking in which is normal when the compressor is forced to start up again right after a shut down. This forces it to try and start against high head pressure. Next time that happens, shut it off and wait a few minutes before asking it to turn back on again. This allows the head pressure to drop first and make it easier for the compressor to start.
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woodyboater
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Re: Trouble shooting AC on 3697

Postby woodyboater » July 27th, 2015, 8:52 am

Thanks,
I tried it several times over the weekend and it would not start blowing. Seems like after it set for a week that it reset itself and started this week. I'll try it again next weekend and see what happens.
1985 Carver Mariner
1959 Chris Craft 18' Continental
1956 Chris Craft 15' Cavalier
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Re: Trouble shooting AC on 3697

Postby My Jurisdiction » October 2nd, 2015, 12:06 am

Check the strainer system for clogging. It has happen to me at dock. /sitting at dock the system can suck trash for the port your docked in.

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