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Open Roads Forum  >  Travel Trailers  >  Modifications and Accessories

 > Daunting it's not...rooftop AC replacement

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kellem

Shenandoah valley,VA

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Posted: 02/09/20 07:20am Link  |  Quote  |  Print  |  Notify Moderator

Had a widow maker destroy our AC 15 yrs ago.

It was a pretty straightforward job and remember the Torque specs being minimal on the gasket.

I'd likely do it again but prefer it not be another branch.

jdc1

Riverside, Ca

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Posted: 02/09/20 09:10am Link  |  Quote  |  Print  |  Notify Moderator

Cobra21 wrote:

Thanks for the post. That also tells me that the gasket replacement would be easy!
Brian


The gaskets are glued onto the AC.

deltabravo

Spokane, WA

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Posted: 02/10/20 07:17am Link  |  Quote  |  Print  |  Notify Moderator

jdc1 wrote:

I took an hour out of my morning to replace my rooftop AC unit on my 5th wheel. Folks....do not pay someone to do this. It is VERY simple to do, even for the faint of heart. The only hard part is deciding where to put the ladder, to use as a "long ramp" to pull the new unit up on the roof.


I have a loft in my shop and used a ramp to slide the A/C from the loft area to my roof. It worked really good.

I went from a tall A/C unit to a low profile heat pump.

Here's my video of the project


2009 Silverado 3500HD Dually, D/A, CCLB 4x4 (bought new 8/30/09)
2009 Arctic Fox 811 (bought new 11/9/09)
2015 Nash 17k (bought pre-owned 5/23/18)
2008 Haulmark 8.5x20 toy box trailer

deltabravo

Spokane, WA

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Posted: 02/10/20 07:20am Link  |  Quote  |  Print  |  Notify Moderator

Use BLUE THREADLOCK compound on your A/C screws.

Twice my screws loosened up on my original A/C and I had a water leak while camping.

I'd highly recommend pulling the ceiling panel off and adding blue threadlock as a preventive measure so you don't end up with a leak at the A/C

crasster

Dallas

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Posted: 02/11/20 03:03pm Link  |  Quote  |  Print  |  Notify Moderator

It's those teeny times in life that we wish we had a fork lift real quick at home. Just for 1 min.... 1 single minute... [emoticon]


4 whopping cylinders on Toyota RV's. Talk about great getting good MPG. Also I have a very light foot on the pedal. I followed some MPG advice on Livingpress.com and I now get 22 MPG! Not bad for a home on wheels.


CavemanCharlie

Storden,MN

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Posted: 02/11/20 06:29pm Link  |  Quote  |  Print  |  Notify Moderator

It was fairly easy. I used the farm loader tractor to lift the AC on to the roof top for me.

JRscooby

Indepmo

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Posted: 02/12/20 04:42am Link  |  Quote  |  Print  |  Notify Moderator

I had no issue lifting the AC to the roof of Popup. But had to build a bridge to hold me off the roof while moved it to hole.
I have trouble working overhead. The long bolts have no guide to hole, hard to start while holding the inside plate in place. I cut couple of pieces of all-thread longer than bolts. Screwed them in, slid plate on the studs, and started nuts. With them holding it was easy to start bolts. Double nut studs, replace with bolts.
About the loc-tight? Yes the bolts loosen over time. But are you sure it is the bolts backing out? I think it is just as likely that the weight, and shaking is compressing the gasket. IMHO, compared to the other maintenance on a RV, pulling and cleaning the inside cover, checking the bolts once a year is NBD

allen8106

Burrton. KS

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Posted: 02/12/20 01:18pm Link  |  Quote  |  Print  |  Notify Moderator

webwrangler wrote:

How much does the average AC unit weigh? Just curious--my TT doesn't have AC.


Spec sheet on my Coleman unit says 93 pounds.


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2018 GMC Sierra 3500HD 6.6L Duramax

2010 Nights 45
2011 Nights 70
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Cocky_Camper

Rock Hill, SC

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Posted: 02/20/20 11:17am Link  |  Quote  |  Print  |  Notify Moderator

Yep. We replace both of our on our class A our self. $1,100 for both units. Repair shop wanted $4,100 Materials and Labor to replace them.

We managed to get them on the roof standing on the side of the service truck and lifting to two people on the RV roof.


2004 Sea Breeze by National RV - 8341

Former Coaches:
2006 Keystone Zeppeline 291 - TT
2000 Aerolite Cub F21 - Hybrid TT
1991 Coleman Pop Up

Formerly known as: hybrid_camper

rbpru

North Central Indiana

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Posted: 02/20/20 04:04pm Link  |  Quote  |  Print  |  Notify Moderator

I have a 2010 vintage "Lite" TT. The manufacturer said I needed to place plywood boards down before I could walk on my roof.

With my fear of heights, it has not been an issue. [emoticon]


Twenty six foot 2010 Dutchmen Lite pulled with a 2011 EcoBoost F-150 4x4.

Just right for Grandpa, Grandma and the dog.


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