Salon A/C leaking on 2000 396 Aft Cabin

[tgebler]

The a/c in the salon is leaking water onto the carpet. I checked the pan under the unit and the hose is not blocked to drain the condensation water. Otherwise, the unit work well. Does anyone have any ideas for the cause of the water leak?

No local HVAC companies will even take a look at the unit. "Don't' work on boats" they say.

[tomschauer]

The pan usually has several different places to connect the drain line. Make sure one of the unused ones isn't leaking. If that's not the case, and the water level at the drain hole that is connected is not far from the bottom of the hole, maybe one of your water lines to / from the unit are leaking?

[Midnightsun]

Is this a new problem? Is there any corrosion in the pan which may indicate a possible pan perforation leak?

Many times these drains are on the side so they do not drain very well especially if the unit is leaning in the opposite direction. With a lot of undrained water in the pan, you put the boat on plane it will spill onto the carpet due to the bow up angle. Best solution is to shim the unit to allow water to drain as much as possible when at dock at rest. When I replaced mine I angled it pretty good to make sure there was as little as possible remains in the pan.

[Tireless]

There is really only two places where water could come from with your A/C unit. The condensation that drips into the tray and the water that comes and leaves the A/C unit from the water pump. In your boat you have one water pump that circulates water through a manifold and to all your A/C units.

My A/C unit in the state room was leaking and I determined it to be at the connection on the condensation drain into the 1/2” hose. The connection in the side of the tray had a plug in it, somewhat like an electrical out would have but plastic. Who ever installed the unit only put a slit in it with a utility knife. Over time it plugged up and the tray would not drain. I cut the entire plug out and this freed up the water flow.

To check for this, remove the drainage hose by loosening the pipe clamp. Stick a screwdriver into the hole to ensure no blockage, such as the issue I had.

If its not that, I would check to see if the pipe clamps are tight on the drain line as well as the water line hose both in and out of your A/C unit. Also check the hose ends to make sure they are clean with no cracks or holes.

Your tray should be draining dry with no water build up at all.

Greg

[tgebler]

thanks to all for the suggestions

[Viper]

Source of the post There is really only two places where water could come from with your A/C unit. The condensation that drips into the tray and the water that comes and leaves the A/C unit from the water pump....Greg

And the condensation that collects on uninsulated ductwork. You'd be surprised how much water that can be. Certainly a water leak and a drip tray not draining are suspect, if it's just a little bit of water, don't rule out the ductwork if it's non-insulated.

[tgebler]

Thanks.