I Have Been Working On The Above Chiller Here In Abuja, Nigeria For The Past One Month Below Is The Problem I Have With The System.this Sytem Has 2 Circuits With 1 Compressor(rotory) Each On Circuit A & B Respectively. The Comprssor On Circuit A Is Working Ok, While That Of Circuit B Runs For About 2 Minutes Then It Trips On Fault Message As Follows:"low Oil Flow". I Have Replaced The Oil Filter Several Times. It Seems The Oil In The System Is Ok. Please Advise Me What To Do Next.besr Regards,ahamed Kyana