AC dripping water on inside...

[duflochy]

On our last outing it was hot and humid...With my a/c running full blast it driped water on the inside of the coach....I admit the filter needs cleaning/replacing......Is there some other secret I dont know about????

[Bill Killen]

Good one! not sure the filter had anything to do with it. I have had that issue on humid days too! I do not think it is the unit itself dripping water, but condensation on the vent. That is the research I have done on it.

Try switching the vent from the main AC vent to the room diffuser(?) option, to run the AC into the ceiling vents that go to the rooms. do you still get condensation on the AC unit?



I use a "sham wow" to wipe it. you could put something like that (super absorbent) up in the AC from the inside, to see if it is catching water from the unit.
keep us in the loop!

[joneldbrat]

Can you supply a little more info. Like brand and age of the Air Conditioner. If the picture you use is your unit it looks like maybe its Coleman. If the filter is dirty and restricting return flow to your coil. It will tend to freeze and then it will allow water to drip into your unit. Also there may be a return drain tube on top under the Air Conditioning cover that allows water to run to the rear of the unit for cooling the coil at the rear. It could be blocked.



John

[joneldbrat]

Hey Bill,

Lets talk about Sham Wow. My son is constantly talking about the product. But won't let loose of the cash till someone confirms it not a scam. Is it as good as advertised? What do you think of it.



John

[H. Miller]

We've pretty well eliminated the problem by keeping max air going thru the a/c. That means high fan speed, clean filter and using the large vent at each a/c.
Long ago we purchased a roll of the blue filter material (Lowes or Home Depot) and cut 8-10 filters. They're changed every 2-3 days (on the road) and hosed out upon return. Works for us.

[duflochy]

Quote:

Originally Posted by Bill Killen Good one! not sure the filter had anything to do with it. I have had that issue on humid days too! I do not think it is the unit itself dripping water, but condensation on the vent. That is the research I have done on it. Try switching the vent from the main AC vent to the room diffuser(?) option, to run the AC into the ceiling vents that go to the rooms. do you still get condensation on the AC unit? I use a "sham wow" to wipe it. you could put something like that (super absorbent) up in the AC from the inside, to see if it is catching water from the unit. keep us in the loop!

no duct work on this unit, its prehistoric...The a/c never quit cooling so it didnt freeze up and when I cut the thermostat back later in the day it quit dripping......

[mick]

What normally makes this happen is, that a/cs are sat in a tray when installed. On the tray , there is an overflow piece of rubber hose. On heavy humidity days, the tray fills up, and the overflow is designed to let the water go out and over the sides of the moho. When you are EXACTLY level , or the tray is full, that water has no place to go but DOWN. Find your overflow hose and most likely it is plugged up.

[joneldbrat]

I would look to the top. Run the air till it starts to leak then shut the power off to it. Take the cover off the unit on top and see if there is water built up in the unit. If the water can not get to where it needs to go. My 1970 Holiday TT ran through a tube to the rear coil. My 1996 Motor Home it runs out on the roof. And I’m not sure that is correct. It could be building up high enough to run back inside your coach. The water tray sides should be low enough to let the water out before it would go inside.


John

[Our Time]

John,
IMHO Sham-wow not worth the money. Leaves residue water on the spill after you wipe it up. It is absorbent, but not any more so that a good paper towel. Save your money!

[Bill Killen]

John
Sham-Wow is cool. the imitation versions are total crap. for $20 bucks its a safe purchase (at your local cvs or other store that sells the "as seen on tv" branded products.

It absorbs massive amounts of liquid. i use them when the roof leaks on rare occasions.

i do notice some streaks, but nothing that a dry towel would fix. of course there will be a streak if the towel is somewhat wet. I like them, i tried the generics and they did not work. some of the off brand versions are made of some wicking fabric like what polar fleece is made of, but is not anywhere as good.

bk

[LHyzer]

I think Mick is on target. I have seen numerous A/C units that had the tray drain plugged up resulting in water dripping to the inside of the coach.

[wa8yxm]

There are three common and one uncommon causes of water dripping

Common cause #1: Rig not properl leveled.. Try raising the nose (Front) of the rig about 1/2 bubble

Common cause #2 (By the way these are given in order of "Ease to fix") dirt in the drip tray.

Up on the roof.. Under the evaporator coil, which is where the water condenses, is a drip tray, generally this runs to the rear of the unit and there is a "notch" in the edge of it where the water is SUPPOSED to drip out onto the roof (Why they build 'em this way I don't know) this tray can grow alge and collect other debris and the water can not get to the notch and thus goes where it can, Down inside.

You have to remove the outside cover (Shroud) to get in there and clean.. NOTE: This is part of the recommended annual or semi-annual maintenance anyway.

Suspect #3: Check the mounting bolts, The 4 big bolts can work loose and may need to be re-tightened to re-make the seal

The uncommon one... I pulled the cover off mine (inside cover) the other day and found that running constantly, as it had been, the metal of the frame was cool enough that some water was condensing out on the framework, not on the evaporator coils where it should. However there was not much and it was not dripping (yet) I wiped it off with a towel and ... No problem.