\u00a9 2023 wikiHow, Inc. All rights reserved. Be sure not to allow water to enter the system. To avoid an expensive service call, Costas suggested we first try pulling the fridge away from the wall, unplugging it and removing the service panel for about 20 minutes to allow enough time for the compressor to cool and any onboard computers to reset. It's my understanding that this short copper tube was used to initially charge the compressor during manufacture. If there are multiple pipes, consult your fridges manual to determine which one is the Freon line. Continue to add refrigerant until We use cookies to make wikiHow great. To start, identify why you fridge isnt working properly. There are no service valves, so this one is needed to measure the pressures and to add Freon. WebLocate the water shutoff valve: its usually in the wall behind the fridge (sometimes hidden in a panel), under the sink or in the cabinet next to the refrigerator. Buy a bullet-piercing valve from a hardware store or refrigerator repair company. This image is not<\/b> licensed under the Creative Commons license applied to text content and some other images posted to the wikiHow website. At least some digital refrigerant manifold or gauge sets can accomodate more than one type of refrigerant gas. Typically, the price of the new compressor is $50-$300. That's to avoid blowing air and contaminants into the HVAC system. the state change from liquid to vapor. We recommend our users to update the browser. Very easy, even includes the allen wrench. Make sure the valve is fully open by turning it counter clockwise. It's called a compressor "process tube" and it's used in the manufacturing process to charge the sealed system with refrigerant, since most small hermetic systems don't have any service valves for access. The possible versions include R-12, R-13B1, R-22, R-410A, R-502, and R-503. Explore all our refrigeration access fittings, adapters, valves, and accessory options: Adapters Back Seating Control Valves WebYou should install a refrigerant valve adapter to the saddle valve for the safety of your refrigerator. Line connection. Remove the cap on your bullet-piercing valve. The price of the new refrigerator compressor depends on many factors, such as the model of your refrigerator, the area where you live, and your country. To avoid overcharging, its best to charge in short bursts and let the system settle down for a few minutes in between. Design, CMS, Hosting & Web Development :: ePublishing. WebDisconnect and empty your refrigerator. This article was co-authored by Aaron Beth and by wikiHow staff writer, Eric McClure. JavaScript is disabled. It is necessary (with the exception of ice cube machine applications) to use the designated suction tube. 5 With the compressor running, I opened the manifold valve and let the compressor suck in the gas for five seconds or so until the gauge indicated 20 psi. Power it down and gas it up to 60# and soap bubble leak check with 50/50 dish soap and water solution. This image is not<\/b> licensed under the Creative Commons license applied to text content and some other images posted to the wikiHow website. Remove the cap on your bullet-piercing valve. Injecting refrigerant as a vapor in the low side with the compressor running doesn't require any vacuum to be done simply because it's the compressor itself WebYou should install a refrigerant valve adapter to the saddle valve for the safety of your refrigerator. Web10PCS Service Access Valve, 1/4'' SAE x 1/4'' OD x 4.92'' Brass Copper Charging Valve for Air Conditioner Refrigerant System, Air Conditioning Line Repair Tools $1098 ($1.10/Count)$12.38 Save 8% with coupon FREE delivery Mon, Feb 6 on $25 of items shipped by Amazon Locate your compressor tank. On some larger compressors the process tube may be a smaller-diameter tube used for an auxiliary function such as an ice maker - still charging through that port could be OK. A definitive answer would come from the manufacturer of the specific HVAC compressor motor. Continue to add refrigerant until A typical compressor service valve is composed of four essential parts: 1. They are designed and built to provide a quality solution for many HVAC applications. Do this for 4-10 seconds and retest your valve. The instructions inside explain the process. 14 July 2020. https://www.cnet.com/how-to/three-common-refrigerator-problems-you-can-easily-fix-yourself/, https://www.reviewed.com/refrigerators/features/why-is-my-fridge-leaking. Questions of a Do It Yourself nature should be The third pipe is called a "process stub", as I've heard it. Visit our updated, This website requires certain cookies to work and uses other cookies to help you have the best experience. MANIFOLD FOR R12/R134A, Testo 550s / 557s DIGITAL MANIOLD INSTRUCTION MANUAL, THERMOSTATIC EXPANSION VALVE TEV INSTALL, DIAGNOSE, REPAIR, ARTICLE INDEX to AIR CONDITIONING & HEAT PUMPS, Refrigeration Temperature & Pressure Chart, HOME INSPECTION EDUCATION COURSES (Canada), HOME INSPECTION EDUCATION: HOME STUDY COURSES, Connect the gauge set center supply tube to a canister of the proper refrigerant gas matching the refrigerant in the system being tested, Leave some positive pressure of refrigerant gases in each of the two gauge test connection hoses. Could just one or two of them be not working, and the other one or two still be working? To be clear, when connecting an HVAC refrigeration gauge set to test fittings on an air conditioner or heat pump we must: We use (and illustrate) a traditional Imperial System Analyzer gauge set that provides three charging lines (refrigerant canister, high side, low side). The important thing is that the switching is on the proper terminals. The compression involves the motor and the male and female rotors. I sent it in for repairs a few years back, but now it is failing with the exactly the same symptoms: compressor working non-stop, temperature never goes to -18C (it has a digital display), but stays around -11C. GAUGE, REFRIGERATION PRESSURE TEST at InspectApedia.com - online encyclopedia of building & environmental inspection, testing, diagnosis, repair, & problem prevention advice. Illustration: testo 550s or 5557s Digital Manifold for measuring refrigerant pressures; Testo's equipment, cited below, includes models that can communicate refrigerant pressure readings wirelessly to a smartphone app.