I hate to be the bearer or bad news, but from the symptoms you've described… it sounds like you've most likely lost most of your refrigerant. Or, there is a failure internally on that hermetically sealed compressor. Now here's why I say this… your compressor is running but isn't getting very hot, and the hot gas line from the compressor to the condenser coil starts warm near the compressor and then cools before hitting the condenser. Right? Alot of the heat generated inside a refrigerant system compressor is from compression. Pulling low pressure vapor from the suction side, compressing it into a hi pressure vapor into the hot gas line. That is then cooled by the condenser coil and fan into a hi pressure liquid, which is sent to the metering device (in something like this, I expect it to be a capillary tube.. very small diameter tube of a very specific length decided by engineers). That turns it from hi pressure liquid to low pressure liquid, and when that enters the evap coil, it boils off into low pressure vapor, absorbing heat. And it starts again. I'm likely to think refrigerant loss is the culprit, as you ARE getting some cooling. Which tells me that some refrigerant is being moved, which rules out an outright compressor failure. Though there could be issues with the internal valves, allowing blowback. Though that is VERY uncommon in my experience. So im thinking most likely it is refrigerant loss causing this. What is the temp of the suction line going into the compressor? Is it cool? Or warm like the other side? If it is warm as well I would think compressor might actually need replacing.
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I hate to be the bearer or bad news, but from the symptoms you've described… it sounds like you've most likely lost most of your refrigerant. Or, there is a failure internally on that hermetically sealed compressor. Now here's why I say this… your compressor is running but isn't getting very hot, and the hot gas line from the compressor to the condenser coil starts warm near the compressor and then cools before hitting the condenser. Right? Alot of the heat generated inside a refrigerant system compressor is from compression. Pulling low pressure vapor from the suction side, compressing it into a hi pressure vapor into the hot gas line. That is then cooled by the condenser coil and fan into a hi pressure liquid, which is sent to the metering device (in something like this, I expect it to be a capillary tube.. very small diameter tube of a very specific length decided by engineers). That turns it from hi pressure liquid to low pressure liquid, and when that enters the evap coil, it boils off into low pressure vapor, absorbing heat. And it starts again. I'm likely to think refrigerant loss is the culprit, as you ARE getting some cooling. Which tells me that some refrigerant is being moved, which rules out an outright compressor failure. Though there could be issues with the internal valves, allowing blowback. Though that is VERY uncommon in my experience. So im thinking most likely it is refrigerant loss causing this. What is the temp of the suction line going into the compressor? Is it cool? Or warm like the other side? If it is warm as well I would think compressor might actually need replacing. You've already confirmed that fans are working, and coils are cleaned. The symptoms you describe tell me the problem isn't the defrost system, as if it were running when it shouldn’t, your compressor and condenser would be VERY hot, or if defrost termination didn't happen, compressor wouldn't run at all. So this means you need to check refrigerant levels (or, if not properly trained to, get a technician to do.it for you. Without throwing gauges on it at this point its very hard to narrow down further. Need to see suction and liquid pressures to check compressor operation reliably. Also, did you see any traces of oil? This would help narrow the leak. I can't say evap or condenser coil are good without leak checking them.
I hate to be the bearer or bad news, but from the symptoms you've described… it sounds like you've most likely lost most of your refrigerant. Or, there is a failure internally on that hermetically sealed compressor. Now here's why I say this… your compressor is running but isn't getting very hot, and the hot gas line from the compressor to the condenser coil starts warm near the compressor and then cools before hitting the condenser. Right? Alot of the heat generated inside a refrigerant system compressor is from compression. Pulling low pressure vapor from the suction side, compressing it into a hi pressure vapor into the hot gas line. That is then cooled by the condenser coil and fan into a hi pressure liquid, which is sent to the metering device (in something like this, I expect it to be a capillary tube.. very small diameter tube of a very specific length decided by engineers). That turns it from hi pressure liquid to low pressure liquid, and when that enters the evap coil, it boils off into low pressure vapor, absorbing heat. And it starts again. I'm likely to think refrigerant loss is the culprit, as you ARE getting some cooling. Which tells me that some refrigerant is being moved, which rules out an outright compressor failure. Though there could be issues with the internal valves, allowing blowback. Though that is VERY uncommon in my experience. So im thinking most likely it is refrigerant loss causing this. What is the temp of the suction line going into the compressor? Is it cool? Or warm like the other side? If it is warm as well I would think compressor might actually need replacing.