(800) 853-2651
SHOP NOW

JD 4400 air conditioning not working after conversion

S

steveinohio

Member
I had my air conditioning compressor and dryer switched to R134A the first week in September and it had cold air as expected. When I tried using a couple of days ago no cold air was felt. I can see the compressor is not turning when the switch is turned on to "cold" and making sure the heater switch is off. I checked the fuse and it's okay. Where do I want to start next? A new cab switch? Could it be the connection at the compressor? Any assistance is greatly appreciated.
 
I"ll check on the freon in the system; I"d be surprised if it leaked out as I never had a problem with leaks before but there is always a first time. Also, there is a thermal switch and an air conditioning temperature control switch. Could one of these be malfunctioning and needed replaced?
 
there is sometimes a problem with the new low pressure valves. they sometimes don't seal up properly.
 
If it has Gates hoses, there is a chance that the mold release agent in the hoses reacted with the oil in the r-134, and left a coating on the inside of the evaporator, insulating it and preventing heat transfer. This happened a bunch of times when I worked for Deere in the 90"s when a lot of systems were changed over. We had to flush the systems and recharge them.
 
If it is not low on freon, then jumper wire the compressor and see if the clutch is ok before you get into it much further
 
You must log in or register to reply here.

Similar threads

S
JD 4400 dies and won't start
Replies
6
Views
356
wore out
wore out
J
4450 AC
Replies
15
Views
891
NoDakInMN
N
D
Gifted JD 2350 over my head, electrical issues
2 3 4
Replies
74
Views
2K
danc1948
D
G
MF35 Diesel Deluxe need help
Replies
6
Views
476
Greystone
G
V
4210 starting problem
Replies
1
Views
202
wore out
wore out
Tractor Parts Tractor Manuals

We sell tractor parts! We have the parts you need to repair your tractor - the right parts. Our low prices and years of research make us your best choice when you need parts. Shop Online Today.

Copyright © 1997-2024 Yesterday's Tractor Co.

All Rights Reserved. Reproduction of any part of this website, including design and content, without written permission is strictly prohibited. Trade Marks and Trade Names contained and used in this Website are those of others, and are used in this Website in a descriptive sense to refer to the products of others. Use of this Web site constitutes acceptance of our User Agreement and Privacy Policy TRADEMARK DISCLAIMER: Tradenames and Trademarks referred to within Yesterday's Tractor Co. products and within the Yesterday's Tractor Co. websites are the property of their respective trademark holders. None of these trademark holders are affiliated with Yesterday's Tractor Co., our products, or our website nor are we sponsored by them. John Deere and its logos are the registered trademarks of the John Deere Corporation. Agco, Agco Allis, White, Massey Ferguson and their logos are the registered trademarks of AGCO Corporation. Case, Case-IH, Farmall, International Harvester, New Holland and their logos are registered trademarks of CNH Global N.V.

Yesterday's Tractors - Antique Tractor Headquarters
Website Accessibility Policy

Back
Top