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Old 06-30-2019, 10:46 PM   #1
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Brand: Thor Motor Coach
Model: Mandalay
State: Montana
Posts: 5
THOR #15834
Question Dash Air Conditioning recharge

I have a 2006 Mandalay 40' diesel pusher with a Cummings 400HP and a side radiator. My dash A/C puts out air that is just slightly cooler than the outside air. I am pretty sure I just need to recharge the A/C system but I'll be darned if I can find the low pressure port to do the recharge. I have crawled inside the engine compartment, I have crawled around under it, I have check near the radiator - I have even check up front around the generator. But I can find nothing. Can anyone tell me where to look?
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Old 06-30-2019, 11:31 PM   #2
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Brand: Thor Motor Coach
Model: ACE 27.1
State: Florida
Posts: 2,964
THOR #7035
Start at your compressor and trace the low pressure hose back to the evaporator. Gotta be there somewhere.
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Old 07-01-2019, 01:00 AM   #3
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Brand: Thor Motor Coach
Model: Tuscany
State: Texas
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THOR #1808
look right up close to the evap...right behind the high pressure line
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Old 07-01-2019, 03:27 AM   #4
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Brand: Thor Motor Coach
State: Ohio
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THOR #12726
Quote:
Originally Posted by Jasper View Post
I have a 2006 Mandalay 40' diesel pusher with a Cummings 400HP and a side radiator. My dash A/C puts out air that is just slightly cooler than the outside air. I am pretty sure I just need to recharge the A/C system but I'll be darned if I can find the low pressure port to do the recharge. I have crawled inside the engine compartment, I have crawled around under it, I have check near the radiator - I have even check up front around the generator. But I can find nothing. Can anyone tell me where to look?
Funny I just recharged mine today for the same reason and when I went to recover the Freon it was empty, so I pulled it down for an hour and let it sit and it didn't loose any vacuum so the tag said 2lbs 9 oz the low side port will be close to the drier and high side is near the expansion valve I added some dye and charged it up and works good so have to wait and see if it leaks anywear.
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