Paid service charges. Technician did not know what is causing the problem. He requested to do service for $270 which may fix the issue but he is not sure that it will be fixed, and if not fixed after that he can replace parts for another $170 !
I refused to allow him do anything while he does not know what he is doing and is just tossing a coin. It was clear that he is not professional, he remove some external cover that I found he replaced it in the opposite direction after he left!
Do NOT use this company, very unprofessional