Originally Posted by
Freightshaker
"I have been reading this for days and have been trying real hard to stay away but alas I cant. Carrier procedure is to add oil (1/2 gallon)to get machine to start, operate in a high load state, check ref. charge and then remove the oil.
Now have I ever done this? let me just say that every one of my hx and gx machines have the oil level sensor wires striped at some point just wide enough for a jumper. I have never had to leave it on for more then 3 or 4 min. if you do its probably the charge or some other problem.
in this case the tubes are probably pluged and the unit is oversized which causes it to stay in a low load condition for extended times. clean the tubes, increase the deadband, start the smaller comp first, and properly check the charge. the oil is there, run the machine properly and it will be fine."
^works for him, me, and others with no catastrophe. Nobody must do it this way it is just an option. These machines are notorious for this and it is just another option. Many people do this if they are familiar with the particular machine and it's history. Say for instance a compressor was locked out for some time while another compressor was running the oil may migrate and once brought back online it would have a fit. This is just a quick tip of getting it back up and gunning.