Fish bowl cooling class A

JCat wrote:
I have always had a problem cooling and heating the fish bowl on my RV.
The dash air has never cooled the fish bowl and the front air does not send enough air while driving to the front.

I’ve tried directing the flow to the front, using a fan to push the cool air to the front, nothing works.

Also I do drive mostly out west with temps over 90 many times.

So has anyone done any creative ac mods to help this situation ?

Like replacing the dash ac system and putting in something that works, or adding some type of stand alone ac unit in the front ?

Let me know

Jcat
2004 Mandalay 40 D

Having a very similar coach as you, I face the exact same problem. Hot in the summer, cold in the winter. In the winter, I can feel the cold air, in the summer, it's just generally hot. I suspect air leaking in from outside but I haven't been able to pinpoint where it's coming from. I even put a fog machine in the generator bay while parked looking to see where the air came in, with no luck.

In the summer, I've had the most success opening the louvers on the front air so most of the air blows straight down, and a fan a few feet behind that blowing forward. Certainly not cold up front, but made it a little more tolerable. My bigger problem is keeping the engine from overheating in those conditions!

I recently got a thermal camera and will be using it on my next trip to try and see where the air is coming in from - I suspect it might be around the stair well. It will probably be more revealing in the winter, but I'll try it anyway. If I come up with anything useful, I'll follow up here.

Forgot to mention - I had the dash air serviced a few years ago, it seemed to help in the sub 90 temps, but didn't make a difference above 90. The next year, it didn't seem to make much difference at any temp, and I'm not about to spend $500 or $600 each year for a marginal improvement.