Page 1 of 2 12 LastLast
Results 1 to 10 of 16
  1. #1

    Default JD 4230 Air conditioning problem

    I just purchased a 1973 4230 John Deere tractor. I was told the only problem with the tractor was the Air conditioner was not working, so i called a retired john deere mechanic in to install a brand new COMPLETE system. The system included all new lines, dryer, evaporater, compresser, filters, and getting the condensor flushed and checked out. The kit is an A & I system which obviously is an aftermarket kit but my john deere dealer recomended it. After the installation i noticed on hot days with the ac on high it dosen't seem to cool like i would have expected. Any one have any knowledge on this or is this normal???

  2. #2
    Platinum Member
    Join Date
    Dec 2001
    Posts
    975
    Location
    Maryland

    Default Re: JD 4230 Air conditioning problem

    I am not familiar with the A&I kit, but assuming the replacement parts are cmparable to the original equipment parts, the system should provide plenty of cooling even in the hottest weather. On these tractors, the number one problem is lack of enough airflow through the radiator and condensor. Even when they appear clean, alot of dirt can be trapped in the colling fins. A pressure washer is required to clean thoroughly. Have your mechanic put his a/c gauges on the system on a hot day. If system is properly charged and enough air is cooling the radiator and condensor, the high side pressure should not go above around 225 psi max. If it goes higher than that, then either there is not enough air or it is overcharged. The low side should be from 10 -20 psi. Lack of air can cause this pressure to be high also. If the low side is showing a vacuum, then probably the expansion valve is bad or clogged.

  3. #3

    Default Re: JD 4230 Air conditioning problem

    Make sure your cab filter and the condenser in the roof are clean.You have a lot of glass area in that tractor.Some of those older tractors just sort of broke even on real hot,bright days.

  4. #4

    Default Re: JD 4230 Air conditioning problem

    thanks for the replies guys. rundog yes we installed new filters in the cab and a new evaporator as well. we flushed the radiator out but maybe not as well as we could have.

  5. #5
    Super Member
    Join Date
    Dec 2003
    Posts
    5,104
    Location
    NC
    Tractor
    Kubota Grand L3830

    Default Re: JD 4230 Air conditioning problem

    Quote Originally Posted by smitty9805 View Post
    I just purchased a 1973 4230 John Deere tractor. I was told the only problem with the tractor was the Air conditioner was not working, so i called a retired john deere mechanic in to install a brand new COMPLETE system. The system included all new lines, dryer, evaporater, compresser, filters, and getting the condensor flushed and checked out. The kit is an A & I system which obviously is an aftermarket kit but my john deere dealer recomended it. After the installation i noticed on hot days with the ac on high it dosen't seem to cool like i would have expected. Any one have any knowledge on this or is this normal???
    Do you have a small electric fan? if yes place the fan in front of the radiator and blow air through the condenser while monitoring the output air temperature from the center duct. If you notice and record an improvement purchase one of the small vehicle electric fans from a junk yard and place in on the tractor to assist the existing fan. Some of the older tractors had fans that did not move enough air to obtain maximum efficiency from the air conditioner condenser.

  6. #6
    Veteran Member
    Join Date
    May 2009
    Posts
    1,616

    Default Re: JD 4230 Air conditioning problem

    With that much glass around the cab, you could Tint the windows. The tinting need not be dark, use a sliver colored tint to reflect the heat with very little darkening.

  7. #7
    New Member
    Join Date
    Aug 2012
    Posts
    5
    Location
    Savoy, Tx
    Tractor
    John Deere 4230

    Default Re: JD 4230 Air conditioning problem

    Quote Originally Posted by smitty9805 View Post
    I just purchased a 1973 4230 John Deere tractor. I was told the only problem with the tractor was the Air conditioner was not working, so i called a retired john deere mechanic in to install a brand new COMPLETE system. The system included all new lines, dryer, evaporater, compresser, filters, and getting the condensor flushed and checked out. The kit is an A & I system which obviously is an aftermarket kit but my john deere dealer recomended it. After the installation i noticed on hot days with the ac on high it dosen't seem to cool like i would have expected. Any one have any knowledge on this or is this normal???
    Have you cleaned out your ac condencer out in might be dirty i have found that the best way for that is too power wash it out

  8. #8
    New Member
    Join Date
    Aug 2012
    Posts
    5
    Location
    Savoy, Tx
    Tractor
    John Deere 4230

    Default Re: JD 4230 Air conditioning problem

    I have a quetion that i can not find any help on i have a 4230 john deere put new ac system on it and know it will start blowing cold out all the vents for aliitle bit. Then it will quit blowing out of the left two vents and the compressor stops also. I have changed the silioned out were the breakers are put a new switch in that turns your ac on and still hasnt fixed the problem everybody that i talk to dont have any clue. I also have changed the breakers as well

  9. #9
    Elite Member Tx Jim's Avatar
    Join Date
    Jan 2007
    Posts
    4,691
    Location
    Coyote Flats,Tx
    Tractor
    JD 4255/Kubota M7040 HDC

    Default Re: JD 4230 Air conditioning problem

    Down in the Texas near the desert I don't stop putting R134A in by JD tractor until the high pressure gauge is at 260 psi. PS it cools on R134A better than it did on R12 before I changed it over. My tractor has an A&I evaporator in it.

  10. #10
    Elite Member Tx Jim's Avatar
    Join Date
    Jan 2007
    Posts
    4,691
    Location
    Coyote Flats,Tx
    Tractor
    JD 4255/Kubota M7040 HDC

    Default Re: JD 4230 Air conditioning problem

    Your ac problem could be blower motor or loose connections on the circuit board on LH side of dash. Have you checked the circuit board for loose circuit breakers or brown spots in the board??

Page 1 of 2 12 LastLast

Similar Threads

  1. JD 2520 gas cap/hood clearance problem
    By Ronster in forum John Deere Owning/Operating
    Replies: 53
    Last Post: 08-13-2011, 04:08 PM
  2. Power Steering Problem Not Solved
    By Alan L. in forum Kubota Owning/Operating
    Replies: 87
    Last Post: 03-31-2011, 06:35 PM
  3. BX 2200 Power Steering
    By Anonymous Poster in forum Kubota Owning/Operating
    Replies: 8
    Last Post: 06-15-2003, 09:47 PM
  4. JD 4000 series wheel bolts
    By Anonymous Poster in forum John Deere Owning/Operating
    Replies: 5
    Last Post: 04-13-2002, 10:56 AM
  5. Chain of command
    By Anonymous Poster in forum John Deere Owning/Operating
    Replies: 9
    Last Post: 04-13-2002, 06:17 AM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
© 2014 TractorByNet.com. TractorByNet is a registered trademark of IMC Digital Universe, Inc. Other trademarks on this page are the property of their respective owners.