Round Louvered vents in ceiling

[Rongrice]

Camping mates, I have several round, white louvered vents in the ceiling of my 2005, Georgetown 375. I have almost nothing coming out of them when I have the A/C on, most if not all of the cold air is escaping from the vents on the A/C units themselves.
When I have the heat on, likewise there isn't anything coming out of the vents either. Since this past weekend was the first time I needed to use the A/C, I haven't had any exptectations of what would come from the vents. (and yes, I did open them!!!)

Thought you smart RVrs could help me out.

Ron

[Herk7769]

Are the Air Handler "dumps" open? In most floor plans you have to choose between the "fast cool down" from the "dumps" or a more distributed air flow from the vents.

If your dumps are closed and you still have poor air flow, you will need to check the ducts for a blockage.

[Rongrice]

Would this be inside the A/C unit itself? Not really sure I have ever dealt with this sore of thing before.
Thanks for your reply though
Ron

[Herk7769]

Not sure if I have a photo of the air handler with the cover ON!

But there are slide doors on the air handler (the place where the filter is located on the ceiling). Those doors are "dumps" for rapid cooling of the living area. They divert all air flow from the entire camper to the area directly below the air conditioner.

[jsutherl]

On my it's a set of louvers on the inside cover of the AC unit itself. Right next to the filter. There's a little slider. If you push the slider one way lots of air comes out right there. Push the slider the other way and it blocks the air dump. Forcing the air to go to the vents.

I only have one AC unit. When it's running and the air dump is closed you can tell air is coming out of the round vents but not a lot comes out. Still it cools things off pretty well.

[Rongrice]

I will try this in the morning.

Ron

[ronhanson]

As stated, you have to have the vent on the ac unit itself closed to develop enough pressure to divert air down the vents in the ceiling. Its an alternate path for airflow that allows quick localized cooling. To really feel it out the ceiling vents you need both ACs going since the outlet surface area is so large and they are connected.

[Nigels]

"When I have the heat on, likewise there isn't anything coming out of the vents either."

I didn't think the airco acted as a heat pump, (like the ones we have at home), we use the furnace for heat or am I missing something?

[onequicksportster]

Originally Posted by Nigels

"When I have the heat on, likewise there isn't anything coming out of the vents either."

I didn't think the airco acted as a heat pump, (like the ones we have at home), we use the furnace for heat or am I missing something?

I believe the heat just comes from your furnace throught your floor vents.

[Hybrid21SS]

I also have the ducted AC on our new 21SS. You simply close the 3 vents on the AC unit and the air gets directed out to the other vents. Works great and much quieter in that mode. You can also spin the smaller vents to direct the cold air where its needed more..

[cfsoistman]

As stated earlier use both AC units. During very hot & humid days set your fan switch to HI on each t-stat for the maximum air flow. We generally leave the bedroom t-stat fan switch set to ON but Low at night time just for air movement. The AC stills cycles on and off as needed. As for the Heat side, unless you had Strip Heaters added to your AC Units there will be no Heat coming out of the ceiling registers. Your T-stat would have a setting where you place the switch to Strip Heat.

[rxfiller]

I have the same low flow problems through the vents on my '08 373...

Had it in the shop two days ago and they say threes nothing wrong, but you can noticeably feel much more pressure and volume of air coming out of the vents from the rear air than then front.

The front ac can not keep up with the heat of the day and only gets comfortable at night. If we open the bypass slider and stand directly under the unit in the ac flow we can get cool. Once we move away, forget it. It's sweat city again.

The tech said he ran a fish tape through the vents and found nothing blocking them. I was thinking of using a fish tape to go down the duct,then tie a shop rag on and pull int back through the duct and see if that catches any blockage.

Don't know what else to do. Any suggestions?

I hope the new tinting on the windows will help too!

[Nutmeg]

rxfiller - Be interested if you find anything that makes it better and how the tint works as my 07 373 has the same issues. IMHO the two 13,500 units are just not enough cooling power for when the heat gets up. Shades some help looking into window screening for the windshield. Good Luck,

[rxfiller]

I know what you mean all too well!

Also, the compartments by the ceiling in the front over the windshield and above the passenger side couch get so hot that it melted the plastic cased computer router I put in there!

FR really should have found a better way to protect these areas from heat. (just my 2 cents... )

[rxfiller]

And what really gets my goat is that when we first got the coach the ac seemed to work fine. I had it out for two weekend excursions and a week long 2400mi trip. The weekends were both here in the Florida heat, and it seemed to cool fine.

When I was getting ready for a cross country trip to Sturgis last year I took the coach in for some work. I figured I'd get the ac units serviced while it was in the shop. It was after that service and on the long cross country trip that the problem first surfaced.

I guess it's true. Don't fix it if it aint broke?

I'd still love any ideas someone may have.....

[F and E Damp]

Does anyone know if the bedroom thermostat runs the bedroom a/c independently of the living room unit when you're on the generator and have both a/cs running?

[Nutmeg]

They run independent on mine. It is also a 50 amp unit so it has no front /rear switch or anything like that also.