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4055 A/C problems...
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KelB
Posted 9/10/2010 21:45 (#1354687 - in reply to #1354666)
Subject: Work though a check list



Ayr Queensland Australia 4807
While the pressures seem good it would be interesting to see what the static pressure is. And what the system pressures are when it has run for an hour or so.
As another post has asked did the dealer flush the system before instlling the new compressor too much oil in the system will cause poor cooling .
You have addressed other items like the heater valve .
Somthing we have done here is when we lift the roof is put some sort of insulation on the square cover before putting the roof down .

Also as mentioned the TX valve could be stuck in one place when the system is running you should see the low and hight side gauge go up and down.
example open the door of the cab i think you would see the low side go higher due to leting more flow

I would change out the tx valve going on what you have said and if the dealer has already check to see if it correct one

Also slide your condensor /cooler out and hose it out do not just look at it from out side and say its clean look though it.
Water is better for this than air .The pressures do not indicate its dirty but clean it anyway .

one thing i forgot check the quick couplers under the cabin

Edited by KelB 9/10/2010 21:46
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