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Old 11-07-2019, 06:15 AM   #1
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A lot to digest so here goes

As you may have noticed I`m new here and It is a bit overwhelming. Lots to digest before I get to the real meat of the website. I just bought my first Diesel pusher and it is a 1997 Fleetwood Discovery 36R. It needed a lot of work but I managed to get it in pretty good shape. I have had other RV`s encluding a class a gas as well as a couple 5th wheels and pull trailers.I joined this site because I am having a heck of a time getting my dash A/C going. I know a little about A/C systems and I know where all the parts should be and that is where the problem lies. There should be an expansion valve or orifice tube after the dryer and just before the evaporator. My access to the front where all this should be is open and easy to see. There is no expansion device. If someone could point me in the right place to start a thread would be very helpful.
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Old 11-07-2019, 08:13 AM   #2
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Welcome to the IRV2.com FORUM(S).

SORRY, I'm no A/C guy but others here I am sure can help you.

When you first enter this group, a new Member may feel a bit overwhelmed by all the forums you can find here. First, you need to set up your USER CP

Once you open and start a menu will open on the left side just take it all in the step-by-step top to bottom.
NEXT, you will find this forum is made up of 14-Forums broken into four-part forums.

First is the HOME, top left above the member's menu. This forum is very helpful to new members to learn and become more familiar with overtime.

NEXT TO HOME is FORUMS on the top left covering Community, RV Lifestyles, Regional and RV Camping. and to the right of this is RV Forums.

RV FORUMS on the top left covers a lot about TRUCKS, Conversations, MVT's, HDT's, Travel Trailers/5th Wheel Chassis & TECH stuff, Chassis CLUB, RV SYSTEMS, Powertrain Garage.

Then you have the OWNERS FORUMS Covering Registry, A-M, and N-Z.

Now if you pan down to the bottom of the page you will find other FORUMS and if you know or have a Class B, you can direct or join the CLASS B FORUMS at Class B Forums And if you get down to Florida this link may be very HELPFUL http://www.CampFlorida.com


So, welcome you again, I hope you join in the fun and share your knowledge by helping new members find their way in this forum as you would in, any RV Park. Again, make sure to set up your USER CP as this is helpful to you and other members. Again if you enjoy or think of starting your own RV Blog you can do that here as well above on menu bar is BLOGS

Enjoy and safe TRAVELS. You can also find RV PARKS above in CAMPGROUNDS. Wal-Mart Parking locator & Bed & Briefest
http://www.allstays.com/c/wal-mart-locations.htm

Welcome to our FORUM, may you be blessed with Happy Travels and safe Trails on all your Road Trips.
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Old 11-07-2019, 09:49 AM   #3
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Hi ! Welcome to IRV2! We're sure glad you joined the gang!

Congrats on the new Discovery. Sorry I can't answer that A/C question! Have fun and keep her between the ditches!

Good luck, happy trails, and God bless!
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Old 11-07-2019, 10:19 PM   #4
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Welcome to the iRV2 forum. Not an A/C expert, but I'm sure other more knowledgeable members will be happy to help out. Best wishes.
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Old 11-08-2019, 04:15 AM   #5
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Discovery Owners Association

I know nothing about AC systems. However, I can give you the link that will answer all your questions about Fleetwood Discoveries. https://www.discoveryowners.com/
This is the largest single model RV group. Join this group, post a question, and in minutes you will have all the help you can stand. Very knowledgeable group. I think it cost about $20 to join, worth every penny in my opinion.
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Old 11-08-2019, 04:49 AM   #6
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Inside the dash assembly, w/the evaporator....
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Old 11-08-2019, 05:25 AM   #7
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Quote:
Originally Posted by paddler1954 View Post
I know nothing about AC systems. However, I can give you the link that will answer all your questions about Fleetwood Discoveries. https://www.discoveryowners.com/
This is the largest single model RV group. Join this group, post a question, and in minutes you will have all the help you can stand. Very knowledgeable group. I think it cost about $20 to join, worth every penny in my opinion.
Don't be surprised if this Post is taken down. It directs someone to a different web site. That seems to be a no no by the admin. Happened to me last week. The OP of the thread asked for help for his RV that he was not gonna find very easily here. The whole thread was taken down. You will get a message from Admin when this happens. Just some of the unknown rules we must live by.
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Old 11-11-2019, 07:21 AM   #8
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Originally Posted by Cincy Steve View Post
Inside the dash assembly, w/the evaporator....
I thought that would be a possibility but thinking outside the box (no pun intended) would be more probable. You wouldn't happen to know the brand of the system used?
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Old 11-11-2019, 08:43 AM   #9
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Yeah, you'd think that stuff like the low pressure switch & expansion valve would be somewhere that you could actually reach them....just in case. Our American Revolution requires almost total dash removal, just to access the "box."

Our system is Denso, but contact Fleetwood w/your VIN for accurate info on yours.
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Old 11-11-2019, 09:13 AM   #10
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Well...Iím not gonna be of any help either!

...

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Old 11-11-2019, 03:57 PM   #11
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This is second hand information so don't take it as being gospel. I have an AURORA evaporator box under the dash and has been problems from the first day. Almost everything on the A/C system has been replaced except for the evaporator box. I have a factory appointment in the spring to get the box replaced.
Talking around to Fleetwood knowledgeable people at factory service centers, their first recommendation was to get a Denso evaporator. The second was a TempCon evaporator box, which I was told that everything was enclosed in the box. It could be if you have this brand of evaporator box, what you are looking for may be enclosed in the box. Just passing along information I was given but not confirmed.
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Old 11-11-2019, 04:52 PM   #12
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I had a 1997 36RS Discovery, it was my first diesel pusher. Loved that coach.

Is your condenser fan running when the air conditioner is supposed to be producing cool air? That fan which is right in front of the front axle and should be running when ever the compressor is energized. Its easy to replace.

I also had one refrigerant line replaced.

I have a lot of pictures of the things I repaired and/or upgraded if you have any questions.
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Old 11-12-2019, 06:30 AM   #13
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Thank you all for the replies. It would seem that I need to open up the dash to get to the expansion valve. I wonder how the conversation went when the engineers all got together and decided that would be a good idea. I definitely made the right choice joining iRV2! I also agree it would be a good idea to call Fleetwood, thank you
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Old 11-12-2019, 04:11 PM   #14
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Quote:
Originally Posted by Fleetwoodguy View Post
Thank you all for the replies. It would seem that I need to open up the dash to get to the expansion valve. I wonder how the conversation went when the engineers all got together and decided that would be a good idea. I definitely made the right choice joining iRV2! I also agree it would be a good idea to call Fleetwood, thank you
Your HVAC is from Denso. The expansion valve is inside the evaporator box.
I have found two cases where the screen in the Denso expansion valve was choked and needed to be cleaned. Which would also call for a receiver/dryer change.
Once you remove enough dash to see the HVAC box, you can remover the evaporator box with out removing the heater box.
Click on downloads in the link for the service manual.
HVAC Systems | DENSO Heavy Duty
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