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  1. #1
    Join Date
    Jun 2012
    Location
    south Carolina
    Posts
    1

    Confused Trane chiller oil fault

    I'm having the same problem for months with a trane chiller mod# RTAA100CYF01AODOF SER#U96033894 we have tried everything we have changed the thermistors we have checked them they all reading right but still we keep getting this oil system fault obviously the compressor on circuit B is being flooded it is sweating all the way till the crankcase heater we replace the crankcase heater also and we keeping the differential of 4 degrees or close between the saturated evap ref temp and the compressor suction ref temp so our superheat is fine if anybody has any comments or suggestions it will be aprecciate

  2. #2
    Join Date
    Apr 2012
    Location
    Paper Street Soap Company
    Posts
    2,298
    Quote Originally Posted by carlitosway983 View Post
    I'm having the same problem for months with a trane chiller mod# RTAA100CYF01AODOF SER#U96033894 we have tried everything we have changed the thermistors we have checked them they all reading right but still we keep getting this oil system fault obviously the compressor on circuit B is being flooded it is sweating all the way till the crankcase heater we replace the crankcase heater also and we keeping the differential of 4 degrees or close between the saturated evap ref temp and the compressor suction ref temp so our superheat is fine if anybody has any comments or suggestions it will be aprecciate
    Its possible the EXV is not either sealing correctly or just not controlling correctly. Ive seen them after pump down bleed refrigerant through the chiller barrel and back to compressor

    If you do confirm EXV failure both valves will need to be changed.

  3. #3
    Join Date
    Sep 2008
    Location
    Western PA
    Posts
    24,940

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