There could be many reasons for the A/C not to work. Lack of refrigerant is only one of them. Among them are the low pressure switch, the high pressure switch, fuse for the compressor, or a bad clutch. Add to that, air in the system, too much or too little oil in the system, bad compressor, plugged receiver/dryer, just to name a few more. Adding refrigerant before diagnosis is just asking for failure. The only way to properly diagnose the state of charge is with a set of gauges and a charging chart. First step is to determine if there is enough refrigerant in the system to activate the low pressure switch. This switch shuts off the compressor when the charge is low. Usually cuts off around 25psig. Activates at 45psig. Once you have determined tat there is enough refrigerant to operate the system, check for power at the low pressure switch. If there is power there, you can momentarily jumper it to see if it turns on the compressor. At this point, the high pressure switch should be on unless it has failed. Also note that systems that were originally R-12 did not use a high pressure switch in most cases. Next, check for power at the compressor connector. If you have power there, and the clutch still does not engage, then the clutch is bad.
As you can see, there is more to an air conditioning system that just putting in more refrigerant. In my opinion, those charging kits should be banned. The general public is simply not qualified to service refrigeration systems.
Upload one or more videos to your post. Photo filesizes should be less than 300K and Videos, less than 2MB. Formats allowed are gif, jpg, png, ogg, mp4, mov, and avi. Be sure to use filenames without spaces or special characters, and filetypes of 3 digits lower case.
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. [ About Us ]
Today's Featured Article - Restoration Story: Fordson Major - by Anthony West. George bought his Fordson Major from a an implement sale about 18 years ago for £200.00 (UK). There is no known history regarding its origins or what service it had done, but the following work was undertaken alone to bring it up to show standard. From the engine number, it was found that this Major was produced late 1946. It was almost complete but had various parts that would definitely need replacing.
... [Read Article]
Latest Ad:
1964 I-H 140 tractor with cultivators and sidedresser. Starts and runs good. Asking 2650. CALL RON AT 502-319-1952
[More Ads]
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.
