Regards! I recently arrived at this refrigerator with the following problem: the compressor constantly activated my protection but sometimes it started. I know you will tell me: check the relay, the voltage and so on, but I clarify that all that I already did. Discard each component (the most common at least) until only the compressor remains, which I replace. Indeed, the compressor has problems. After disassembling it, I connected it several times and its operation is just like when it was installed, but I realize that when it starts it expels air copiously and very little. I proceeded to install another compressor (both use the same r134 refrigerant) and I thought that with this the problem would be solved, but no. At the time of charging the refrigerant I did not know what to do, because I usually compare the consumption of the compressor with that of the equipment label and in this case it is obviously useless, but I did not stop. Try to charge the compressor to a consumption of 1.30 amp. or as close as possible but no matter how much refrigerant I charged, I did not obtain a consumption greater than 0.50 amp. At this point I gave up and decided to wait to see how it cooled (I left it running all night). Everything turned out well, I freeze the water I left above, and below it was quite cold. I was about to conclude the client until I supervised the installation and found the low pipe with a thin layer of frost (I don't know if it's normal), I decided to disconnect the refrigerator (which was working since the gas was loaded) and reconnect it to the 2 min. but to my surprise I don't start. He did it after 30 min. disconnected I don't know if it will be overloaded with gas or the compressor is not adequate (none of the compressors tell me the horsepower or the working amperage).

It should not be charged for consumption should be charged by pressure until the return is fresh withdraw refrigerant luck

Remove gas has a lot of gas and that is why there is return until the return pipe is fresh there are two forms of loads the gas is by pressure and the weight by means of a balance never loads by amp will make you waste your time