Trane chiller RTAC250 Alarm

[cool king2007]

Hi All,
I have alarm with Trane chiller RTAC250 The alarm is " Starter Did not Transition - cprsr 1B" and this alarm shutdown the compressor 1B when it tries to start up i have no idea about this alarm what is the reason and what is it mean. two weeks ago all the compressors of chiller work properly. So what can i do to solve this problem?

Thanks & Regards

[CV_Geardrive]

Hi Cool King 2007,
You should check the integrity of all contactors coils and if the auxiliary contacts are having good contact with contactors.
Most probably you have to change all auxiliary contacts, but you can also check their wiring.
Regards,
CV

[goshen]

Hi Cool King 2007,
You should check the integrity of all contactors coils and if the auxiliary contacts are having good contact with contactors.
Most probably you have to change all auxiliary contacts, but you can also check their wiring.
Regards,
CV

Hi that is good advice i would follow it!