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Low refrigerant pressure?

Discussion in 'Refrigerated Trucking Forum' started by Upright, Jul 10, 2015.

  1. Jul 10, 2015 #1
    Upright

    Upright Medium Load Member

    643
    459
    Jul 13, 2012
    California's Best City
    0
    Got the unit to a shop and they only put 4lbs of r404a. Still throws the same code. Unit sounds like it wants to stall out while getting up to temp. This happens only when parked. Unit runs fine when underway. Any knowledgeable refrigeration guys here?
     
    Upright, Jul 10, 2015
    Upright, Jul 10, 2015
    #1
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  3. Jul 11, 2015 #2
    FLATBED

    FLATBED Road Train Member

    6,665
    5,499
    Sep 14, 2008
    Back behind the Wheel and out of the OFFICE
    0
    What shape are the condenser and evaporator coil's in clean or clogged up ?
     
    FLATBED, Jul 11, 2015
    FLATBED, Jul 11, 2015
    #2
  4. Jul 16, 2015 #3
    Flyer

    Flyer Light Load Member

    183
    88
    Jan 20, 2008
    0
    Coil is going bad. It's the one on top the steel header, behind passenger side door. $50 you can pry it up and pop new one, connect wiring harness. Job done.
     
    Flyer, Jul 16, 2015
    Flyer, Jul 16, 2015
    #3
  6. Aug 10, 2015 #5
    Johnny holt

    Johnny holt Bobtail Member

    19
    7
    Aug 4, 2015
    0
    Try cleaning condenser on front of unit with pressure washer, bug, trash get in it makes it run hotter ! We do this everytime we come into the yard !
     
    Johnny holt, Aug 10, 2015
    Johnny holt, Aug 10, 2015
    #5
  8. Aug 8, 2020 #5
    RoadtoEmmaus

    RoadtoEmmaus Light Load Member

    100
    43
    Apr 20, 2014
    0
    What was the solution?
     
    RoadtoEmmaus, Aug 8, 2020
    RoadtoEmmaus, Aug 8, 2020
    #5
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