I've run into a YORK YLCS heatpump with a Siemens controller and sadly no one knows the password.
The controller itself seems to have been an option from YORK/JCI (unit is from 2012). Only one password has been written down and thats the user password for basic settings ( User: 1 Pw: 1111).
Im looking for the ,,JCI Engineer Level 9'' (cool name btw) password to change the capacity control pulse timings on the screw compressors.
Any help would be appreciated, and yes im a tech and not a customer.
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