Hi, New to this site so if i have posted in the wrong area or something i apologise.
I am a tech in ontario and have a problem with a LG ductless split. it is about 5 years old R22. regular PSC rotory compressor(not variable) 9000btu, single head, 115v. I will post the model number shortly. Here is the story
Another tech diognosed the compressor as failed (locked rotor) and was drawing 30A-40A so a new compressor was orderd and this is where i get on site. The replacement went as expected. wheighed in factory 24.7oz (approx 25ft lineset). On start up the compressor runs for 1.5-2.5 secconds and pulls the suction from 150psi to 125psi then shuts down.
Overload is closed, all safeties are closed, capacitor is new and is within range, there is 115v at my common to run and start weither the compressor is stoped or running for the short amount of time. The strange part is i get current draw of 4.5A when the compressor is running and 10A-11A when it is stalled(LRA is around 40A i believe)
The only time i can get the compressor to run is if there is very little charge (25psi standing and 5psi running)I only ran it like this for a few secconds because i didint want to dammage any components
I spoke at length with the manufacture tech support. he said cap tube. plugged. My opinion is that if the cap tube were pluged it would run for a longer period of time before stalling and when stalled would draw more than 10A
I know it is not likely but i am starting to belive the compressor may be DOA and have orderd a new one but if i am going in the wrong direction would like to hear from you. Any feed back i would appreciate