Help! Fixing an Air Leak in My True Refrigerator
Asked by CoolBreeze91
Hey everyone, I'm having a tough time with my True refrigerator. It's leaking air from what I believe is a faulty drain pan coil, and unfortunately, it's not cooling properly, so I had to throw away all the food inside. I've checked the compressor, and it has continuity, plus the coils are clean. However, when I checked the T-probes, they showed different ohm readings depending on whether they were cooled or heated. While inspecting the coils, I found some oil in the drain pan and noticed a pinhole. I'm looking to cut and braze in a new coil to fix this. My main questions are: what kind of vacuum pump should I use? Can I rent one from O'Reilly's? Does it have the same connection? The fridge uses R134a refrigerant. I'm in California, which might matter. Also, how much refrigerant will I need, and what are the other steps I should take? I can get nitrogen to test the lines, but I'm unsure about the pressure limits for this unit as it's typically 600psi in a line set. Will the components handle that amount? I also have a small oxy-acetylene setup for the pipe work. Thanks in advance for any advice!
Answers
Just a heads up for your pressure question: 600psi equals about 4136.85 kPa. If you’re unsure about the component tolerances, it’s best to double-check the specs to avoid any disasters!
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You definitely need to be cautious! Renting a vacuum pump is a good idea, just make sure it’s compatible. And yeah, don’t go overboard with nitrogen pressure; keep it low to avoid issues. Don't forget to replace the drier when you do your recharge, too. Good luck!
HelpfulHank: Thanks for the tips, FixItFrank! That makes sense! Can’t wait to get this sorted.
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FixItFrank: Good to know, MetricGuru! Might save some headaches down the line.