![]() These line-tap valves are notorious for leaking after time as the 'O' ring seals on them deteriate. ![]() I can see what we call a line-tap valve on the pipe above the compressor -that's what we use to access sealed systems for diagnosing & recharging with a pressure gauge. From what you say it sounds like the leak is on the low pressure side of the system (that's figuratively speaking because when running the low side will be above atmospheric pressure) as when off the low side pressure rises as it equalises with the high side & the increased pressure will exacerbate a leak. These days it's exceptional to see 15 years from a compressor on a domestic fridge, even less on the newer non-CFCs. It's done unbelievably well to last 50 or 60 years. WOW! The compressor looks like an early hermetic (the motor & mechanical parts are sealed within the case) as on modern fridges & not belt drive as I first thought it would be. ![]()
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January 2023
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