Two and a half years old, stopped cooling suddenly back in March. No error codes. Coils clean, compressor fan worked, compressor worked (could hear), freezer fan worked – but not cooling at all. Unplugged while waiting for LG technicians for three weeks. After three weeks, I looked up at compressor, tapped compressor’s high pressure side with screwdriver handle. Plugged it back – it got proper temperature 0 F freezer / 37 F fridge in two hours. Worked fine up to beginning of September.
Symptoms now: too warm – 28 F freezer / 48 F fridge.
What would you suggest me to test?
Looked at coils (no dirty), looked if fans work (both do work), used halogen leak detector tester to look for leaks.
- Guest asked 6 years ago
Hi. You said you tapped the high side of the system. Did you installed a valve and recharged the system at that point? If you did, and the compressor/ fans are all running, you must have a sealed system issue. Sounds like you have a leak in the system and it leaked back down again. Did you install a U.V filter dye drier? With this installed you can find the leak with a black light and glasses. I have attached the service manual for you.
- Brian, Ace Appliance answered 6 years ago
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Hi Brian, thanks for the answer. I didn’t originally installed anything. It just started working after being turned off for three weeks. Not sure if my “tapping / knocking” on the compressor helped or not. Now, four months later, it is acting again.
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Okay. Make sure your compressor and fans are all running. Make sure you have good airflow and at that point if everything checks good I would check your Frost pattern on the evaporators. If they are heavily frosted up you could have a defrost issue which would block your air flow. If you do not have an even Frost pattern or No frost you have a sealed system issue which could be a leak or a faulty compressor.
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