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03-14-2012, 10:57 AM #1
Carrier Chiller Service Bulletin?
There is one of our mech techs that is having some trouble with a Carrier Chiller Mod#19XR. It is throwing a M2 Contactor Failure and the technician believes that the aux contactor is not transferring the 5vdc properly. He remembers (vaguely) that there was a bulletin about the issue a while back but needs to provide that documentation for the engineers to approve repair. Throw/stops/coil have been checked. New Aux contacts have been installed. Any help will be greatly appreciated.
TIAHe who asks a question is a fool for five minutes. He who does not ask any questions is a fool forever.
03-15-2012, 01:09 PM #2Professional Member
- Join Date
- Feb 2012
I did a quick search and did'nt find a service bulletin about it. you said that you changed the aux contacts and are still having the problem?
03-15-2012, 01:18 PM #3
Yes, they have been changed. I believe the technician had incorrectly adjusted throw and he is presently getting them dialed in.He who asks a question is a fool for five minutes. He who does not ask any questions is a fool forever.
03-15-2012, 09:02 PM #4Professional Member
- Join Date
- Mar 2012
What do u mean by M2 contacted failure, do I mean it is tripping the shunt breaker main disconnect