Marine Air Conditioning System Maintenance

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Greetings All, Let's start with the basics... Seawater flow thru your A/C system is primary... Without water flow....You have NO cooling ! Service people on the docks (at least the better ones) can walk down the dock during the summer and tell which boats they are likely to be getting a call from next just by the flow of water (or lack of) going overboard on each boat....Lack of seawater flow can cause other problems besides loss of cooling... Lack of seawater flow causes high system … [Read more...]

A/C System Ices Up

Ac System Icing

I notice from the Google searches...That A/C System Icing is a search done often.. Though there can be many reasons for system icing...There are a few that the DIY boater can rule out before calling the service guy ( I can discuss other reasons in the forum but here are a few of the basic answers) Direct Expansion A/C (as opposed to Chilled Water) systems rely heavily on Air Flow across the evaporator coil in order to pick up the designed amount of heat the system was engineered to … [Read more...]

Free Marine A/C & Refrigeration Troubleshooting

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Greetings All... This is just a note to confirm that I offer FREE Troubleshooting help for your Marine A/C & Refrigeration issues...But I ONLY do this in the FORUM section...If you can't take the time to register & ask in the FORUM...I usually won't respond...(this section is not setup for dialog/discussion...it's only setup for comments) My only request in return is that you Consider me when buying replacement parts, or units...And that if local, you also consider my … [Read more...]

Dometic Marine Air/Cruisair Pump Relay’s

Marine Air PUMP RELAY PANELS 224110040 $245.00 (2PRP) Two Unit Solid State Relay, 115V/230V 1phase 224110050 $275.00 (6PRP) Two To Six Unit Solid State Relay, 115V/230V 1phase Cruisair Pump Relays and Triggers PR3X $285.00 Pump Relay, 115/230V, Up to 3 Triggers (not included) PR3X-2 $285.00 Pump Relay, 115/230V, with two 115V Triggers PR3X-2C $285.00 Pump Relay, 115/230V, with two 230V Triggers PR3X-3 $310.00 Pump Relay, 115/230V, with three 115V … [Read more...]

Marine A/C & New Refrigerant Regulations

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Due to new 2010 EPA regulations regarding the phase out of our long used R-22 A/C refrigerant systems... Here's what I can share at this point from the Cruisair/Marine Air perspective & what I have been told. … [Read more...]

AC Filters, Coils & Pump Systems Maintenance & Checkup

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If it’s yourself doing the service…There are a few things you can do but since you are probably not equipped or trained as an A/C tech…There are of course some limitations…Hopefully I can point out and describe what you can do…And offer a few hints of signs of trouble without tools like gauges etc… … [Read more...]

To 2010 Boat/Yacht A/C Owners

Hello All...A New Year again...Hopefully yours was good.... I started this site last year to "put my feelers out"  about what owners and captains may want to learn and share about marine  a/c. The support has been more than I ever expected... So... My New Year resolution to you is expand the site we created...Because of your feedback I am going to begin adding to my store to allow you to order most of the common Marine A/C system items that I found you've needed,  but … [Read more...]

More on Pumps, Flow & Maintence…Larger Pump ?

Below is another copy of a  post I made in the Meridian Owners Forum...If you want the full jest...http://www.meridianyachtowners.com/forum/forums/thread-view.asp?tid=1957&posts=15#M18424 Hi Mark...Don't know if you are still watching this thread, or if you have seen my thread over in the "Introduce Yourself" forum but here's my take... It seems that when the system was flushed, that it was flushed just well enough to break loose some stuff...Now it is floating around in the hoses and … [Read more...]

Backflush A/C ? & Marine Growth

Copy of recent e-mail to Marine AC.com... Hi Steve, love your web site - lots of great info. ! Our company does a lot of yacht maintenance / mechanical preventive maintenance type stuff here in Wilmington, N.C. - my question is, do you have an opinion concerning back flushing the sea water lines on marine air conditioning systems ? That is, do you think there is any benefit to occasionally (2 or 3 times per season), removing the water discharge hose and connecting a dockside water hose to the … [Read more...]

Pumps & High Pressure…With Manual Controls & Hi Pressure Switch

Recently I was on a boating message board and came across a discussion about pumps and some troubles folks had experienced. The original poster had a March magnetic drive pump that would not pump water, and after the usual back flush & priming sugguestions he could still not get it to pump water…Just before I read the thread he had found that either something had gotten past the strainer (or he didn't have one) and had lodged between the impeller magnet and the pump housing … [Read more...]

New “Forum” Section

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Thanks to my webmaster brother Capt Scott...We now have a forum section...Whoo Hoo !!! Everyone can access it, but registration is required to post...I don't share that info...You can find the link at the top of any of Marine -AC.com's pages...Just click on "Forum"...Or you can click on this http://marine-ac.com/forum/ We are slowly growing, and I seem to notice from the searches what folks do to find Marine-A/C.com. I also see that many are either not finding the forum and/or … [Read more...]