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Dash A/C

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Duane Kunze:
Need help with chassis / dash a/c. 2000 Marquis. Can someone tell me where to find info on location and routing of refrigerant lines from compressor to condenser at front of motor home. I have a leak somewhere and I can’t find any info on routing of the lines, how to access them, etc.
Thanks for your help.

Carl Boger:
Honestly if you can not find the leak in the lines that you can see, it might be easier to just run new lines and abandon the old lines in place.  The lines on mine are buried up in the frame area and are pretty much inaccessible.  They are also secured to the frame in numerous places so they can not be used to pull new hoses down the same route. 

Good luck fixing the AC, I find mine useful on days in the 70's and low 80's, and nice to have on higher temps while running the roof AC.

Hope this helps you.

Duane Kunze:
Hello Carl, I was afraid I would get an answer like that. I’m going to check in the basement area to see if I can find them , but accessing the whole length probably going to be impossible. Thanks for your reply.

David Ciotti:
My 2002 Marquis has a slow leak in the lines that can be remedied by recharging the AC every three years or so.

Keith Moffett Co-Admin:
On our 2002 Marquis the dash A/C was bad.  The drier went bad and blew desicant beads throughout the system.  The high pressure valve was blocked completely.  We took a chance on the hoses and got lucky with no leaks as the shop would have had to replace both lines.  It’s just not cost effective to find a leak along the rails somewhere.  The high pressure valve was located near the base of the windshield behind the front cap and someone very skinny has to wiggle up in there.
Good luck

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