I want to fix it. I called a service guy out to diagnose it, and he told me probably a very small leak in it somewhere, not really economical to repair. Low Back pressure (LBP): These models are used to work in low evaporating temperature ranges , these are suitable for commercial refrigeration , deep freezers and house hold refrigerators as well. Close off the valves on the gauges and note the low side pressure (29 hg). Before we define the R134a low side pressure chart, let us understand what r134a stands for. You can add a small amount of refrigerant and watch what the evaporator does. If it doesn't, it could be a defective compressor. Here at On-Time Appliance we use the large 30# cans but this is not piratical for the average person who owns a refrigerator. If your freezer is stable at -2F, the evap coil should be only a few degrees cooler than that, so your low side pressure should really be something like 2-6 PSIG. I have a Kenmore bottom freezer refrigerator, model 795.71023.011. 5 flashes on main pcb found high side restriction in condenser coil.All sealed system under 10 year warranty. The low side pressure is so low that leak checking low side while running is futile, seems to me. 2. Top-freezer refrigerators: Boast advanced freshness features and stylish flair -- top to bottom! Plus, you can see your entire food inventory at a glance. Freezer runs cold great. Wait about 30 minutes to an hour and check the low side gauge. Called a repair dude, he came in says its either leaking or plugged, he installed a piercing valve on the low side and topped it off and overcharged for good measure. The low suction pressure with high evap temperature (excessive superheat) suggests a lack of refrigerant. So, What does R134a mean? If the gauge needle moved towards 0 you have a leak. Is there something I missed? Low side reads 50 psi & high side 100+ psi. Get shopping advice from experts, friends and the community! It has been in use since the early 1990’s and now, in 2019, we are beginning to see it’s popularity wane with the rise of the new HFO refrigerant known as R-1234yf. Lg Refrigerator Low Side Pressure 134a. One side of the compressor uses suction to pull refrigerant gas through to the other side, where it is pushed out. R-134a Ambient Temperature and System Pressure Relationship Chart. Side-by-side refrigerators: One of our most popular styles, these fridges feature LG's latest cooling and freshness technology, convenient storage throughout and styling that enhances every kitchen. Slowly keep adding the 134a over the next few minutes until you reach 8psi (5psi on Whirlpool). Says he has about half a dozen newer, in otherwise good shape, leakers. The #1 question asked by NEW MEMBERS. The refrigerator has worked perfectly since its recharge. The refrigerant is 134a, and the ambient is 86 F. My gauges show 190 over 0 pounds gauge. Guy has a used appliance store. With 134a, a low-side pressure of 0 PSIG means your boiling liquid is at -15F. These home appliances come fitted with a refrigeration unit known as the compressor. This is my first dual evaporator fridge. Once the frig reaches about 35psi, turn on the frig. I have found though 134a is 134a the only difference is the "Stop Leak" additive they add to the can. Of course, since my wife will insist on a new, $3500 LG bottom-freezer with icemaker in the top door, replacement isn't exactly economical either! Couple months ago, our fridge ceased cooling. The refrigerator is not even 2 years old. Compressor which has bad reputation. If it hold steady, then charge via the low side as a gas. R-134a is the most common refrigerant found in automobiles today. On an all refrigerator, the low side pressure could be around 15 - 20 psig. 1. Lg FC75LANE linear compressor. I don't know if that is too high so I disconnect the power. What should the pull down pressure be at 40 degrees F, low and high side? Currently working on an LSXS26386S. Hello all! That being said, there are still millions of cars on the road that use R-134a and there will be continue to be for at least another decade or more. If I can feel gurgling in the evaporator coils, how can I have a clog if I feel gurgling liquid flowing through it? The HFC-134a and the HC-600a charging boards have different requirements. The refrigerator's compressor plays several key roles, including in the refrigeration cycle itself. At first I thought I had a clogged filter dryer. It is a 134a system. This chart details how ambient temperature correlates with the system refrigerant charge pressure, and how it affects high and low side psi readings. By Inaya April 26, 2019 Post a Comment Refrigerator Ice Maker Assembly Ebs61443357 Fast Shipping Samsung Black Stainless French Door Refrigerator Rf261beaesg Fixed Lg Refrigerator Lfc23760st Clicking Sound Lg Compressor Install Youtube Kenmore Elite 795 71053 010 Aka 79571053010 Won T Cool Diy Lg Refrigerator Best Price Wholesale … What is the suction pressure of an R-134 in a low temperature deep freezer? R134a is a refrigerant used in a wide range of home appliances or industrial appliances. 3. Technical / January 13, 2018 / by Jamco Auto Parts; R134a Pressure Gauge Chart This chart details how ambient temperature correlates with the system refrigerant charge pressure, and how it affects high and low side psi readings.

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