Water Leak Around Air Conditioner - Check the mounting bolt torque.

[TucsonJim]

If you ever develop a leak around your AC when it's raining or due to condensation? One of the causes can be mounting bolts that have loosened over time. Here are the recommended torque values for the different air conditioners Grand Design has used through the years.

Atwood Air Command - Recommended tightening torque of the bolts is 7 N.m (5.2 lb-ft). As a rough guide the bolts should be tightened so that the unit compresses the roof seal gasket to approximately half its height.

Dometic - Evenly tighten the four mounting bolts to a torque of 40 to 50 inch pounds. This will compress the roof gasket approximately 1/2". The bolts are self locking so further tightening is not necessary (Note: Over time the gasket may compress - It might be worthwhile checking if you develop a leak).


Dometic Mounting Bolts.

AirXCel (Coleman Mach) - Proper tension has been achieved for each bolt when the spring coils have just come together. The upper unit has now been properly installed with optimum gasket compression.

Jim

[GeoffnCheri]

Jim,
Last week we had condensation from every vent, not just the main AC units. The outside temps were 95+ during the day and the AC's ran non-stop. None of the AC's dripped however there was visible condensation on every vent. I welcome your thoughts or recommendations.

[TucsonJim]

Jim,
Last week we had condensation from every vent, not just the main AC units. The outside temps were 95+ during the day and the AC's ran non-stop. None of the AC's dripped however there was visible condensation on every vent. I welcome your thoughts or recommendations.

In a very hot and humid environment, some condensation is bound to form on the vents because they are much colder and water will condense on them. You see the same thing frequently on aircraft AC vents.

If you run the AC long enough, moisture will be removed, and the condensation will start to reabsorb into the atmosphere inside the trailer. But if the door is opened, you'll get a fresh influx of warm moist air and have to start all over.

JIm

[GeoffnCheri]

In a very hot and humid environment, some condensation is bound to form on the vents because they are much colder and water will condense on them. You see the same thing frequently on aircraft AC vents.

If you run the AC long enough, moisture will be removed, and the condensation will start to reabsorb into the atmosphere inside the trailer. But if the door is opened, you'll get a fresh influx of warm moist air and have to start all over.

JIm

Thank you,
I did pull the shroud and three of 4 bolts on each unit were loose. Tighten then and had no issues this last trip.

Thanks