Most cars made after 1993 use this refrigerant, and you can. How to Recharge a Dometic RV Air Conditioner. Did you make this project? Before recharging your Dometic air … Sometimes they are labeled with “H” for high and “L” for low. This sounds too simple, but, it will feel empty. Once components are re-installed, the technician will remove all air from the system in preparation for recharging the system with new refrigerant. I had to move the condenser forward to expose and prove this … Every dollar contributed enables us to keep providing high-quality how-to help to people like you. a low system may have a leak and not adding oil will cause damage to the compressor. Release the trigger.7. If it is less than zero, it may have pulled air in and you should evacuate before recharging. This is your target pressure range. Is this true and if so what can I do? The usual cause … The high pressure line will go towards the coolant radiator. Follow all instructions on the label, including additional recommended protective gear. 1. This will have a small plastic lid with an L printed on the top. But the federal regulations forced me out of the business. Locate the pulley on the compressor.6. Can I just recharge to get by until I return home and get it to a shop? Insert a can of refrigerant into bottom of the dispenser, and screw in all the way.Note: There is a needle inside the dispenser that pierces the can automatically. Do not touch anything you are unfamiliar with. 2 years ago. 1 year ago, 6 years ago If your compressor will not engage, add half a can of freon. This process can in fact be very hazardous if done improperly and there are so many factors involved with the vehicles AC that can cause a properly charged AC system to not function correctly. Why might I want to avoid using a sealant? {"smallUrl":"https:\/\/www.wikihow.com\/images\/thumb\/a\/a1\/Recharge-the-Air-Conditioner-in-a-Car-Step-1-Version-4.jpg\/v4-460px-Recharge-the-Air-Conditioner-in-a-Car-Step-1-Version-4.jpg","bigUrl":"\/images\/thumb\/a\/a1\/Recharge-the-Air-Conditioner-in-a-Car-Step-1-Version-4.jpg\/aid106661-v4-728px-Recharge-the-Air-Conditioner-in-a-Car-Step-1-Version-4.jpg","smallWidth":460,"smallHeight":345,"bigWidth":728,"bigHeight":546,"licensing":"