A/C Condensation

Question

I've searched and can't find this topic but we need information and solution.  During hot, humid weather A/C condensation builds on ductwork and drips on ceiling then runs to lowest point.  You can hear the water dripping on the ceiling throughout the fifth wheel.  This has resulted in rotting wood on floors and sidewalls.  Is the condensation normal?  If not, what needs to be done? Is this ductwork supposed to be wrapped with anything to prevent the condensation build-up?  I've read all about reducing moisture in camper, opening vent for cooking, de-humidifier, etc.;  however, this just happens any time AC is on. Obviously this is an intolerable situation and can't continue but we don't know the steps to correct situation.  Thanks for any help you might give.

altern · Answer

Start by assuring the condensate line(s) are open.

the_bear_ii · Answer

Not normal... We do get condensation around the metal ceiling vents from time to time but not enough to drip.

Not sure what you would need to do to fix the problem. There are drain holes that can get plugged up on the frame work for the A/C unit. If they are plugged water could be running into the ducts. You need to be on the roof and remove the shroud to look for the drain holes. Here's a DIY for it
http://bryantrv.com/roofacleaks.html

camperpaul · Answer

One more thing to add to your RV tool kit is a pack of pipe cleaners for cleaning the weep hole(s) in the drip pan.http://bryantrv.com/roofacleaks.html

ksg5000 · Answer

Under the evaporator coil there is a drip pan ... make sure the drain holes aren't plugged.  Cleaning both the condenser and evaporator coils and running the AC on high rather than low may also help.  Cleaning the evaporator coil is overlooked by many because it's under a metallic shroud which requires removal of a number of screws - s/b a number of threads outlining how to clean an evaporator coil (use the forum search feature).

txiceman · Answer

If you are dripping water from the duct vents, the problem is the airr off the unit is too cold and you are below the dew point of the air in the room. The vent gets too cold and drips.

This can be caused by low air flow, or trying to run the room too cold for the application. Low air flow can be due to a dirt filter or a dirty coil or the fan on low speed.

Ken

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A/C Condensation

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