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Refrigerators
two door refrigerator
109
hace 6 años
hace 6 años
friends, a man called me to check his fridge that did not cool when the coolant arrives check the filter and the filter was full of oil completely covered did not have nitrogen to sweep. ... I changed the filter, I emptied it and started charging with r134 refrigerant, the refrigerator was gradually cooling well and I worked 2 days later, I stopped freezing and cooling what do you think it could be ... a technician who was earlier told him that possibly it was the liquid receiver or as a pipotico that has the evaporator that was bad .... please I need your help and I would like to know in the same way that function has that pipotico that is in the evaporator I think it is like a receiver of liquid .. tell me the steps to follow ... thank you very much I need your help
601
hace 6 años
hace 6 años
If the filter you took out was full of oil, I would have swept the capillary tube, since if the filter had oil, possibly the capillary would be in the same condition. If you did not have nitrogen, you would have swept it with the same gas, desoldering the low tube that goes to the compressor, you weld a valve to be served there, from the other end, if you took out the filter, the tip of the capillary tube is released , which is where the pressurized gas you send will escape, you put a container so that all the oil contained in the circuit comes out. Once only gas is blowing, without traces of oil, I would be prepared to weld the new filter, and resolve the low spout to the compressor. you make a vacuum, you check that the vacuum is not lost for a few minutes, if the vacuum is maintained gas loads 134 in normal gas phase with the compressor stopped. until 30psi approx. Then complete with the equipment running. until the pressure drops below zero (2-3 PSI)
57.307
hace 6 años
hace 6 años
Well, error! You should have swept on both sides (evaporator and condenser) to remove traces of oil that stayed mostly in the evaporator, if you refer to the evaporator trap, the safest thing is that that trap is shaped of sausage, the safest thing is that it had oil and since you did not remove that oil, the filter was covered again, greetings
36
hace 6 años
hace 6 años
Hi, how strange is it that it freezes you for two days, it may have leaked somewhere but before deducing that, see if the engine has pressure or is clogged somewhere, what you can do to see if it is clogged desolders the return pipe and run the engine and see how pressure is standard at that point, but before you have to do that you have to dump the gas it has, if it is clogged it does not borata anything, if the engine has no pressure it will drop minimally.
If everything is normal in all this then the refrigerator is leaking somewhere
LUCK!!
215
hace 6 años
hace 6 años
Hello friend, check the refrigerator condenser if it is dirty or if you have an additional fan that is working normal otherwise it is raising a lot of hot oil and covering the capillary or filter .. eye check that the drain pan also has water where the discharge pipes pass, that also helps lower the gas temperature.
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