Sno-Valley Refrigeration was on site yesterday to investigate a problem with the #2 chiller condenser fan motor VFD. The problem appears to be with the control module and not the drive. The technician swapped a couple of the modules with other ones in the control panel. Different modules for different circuits. This seemed to have remedied the problem at least for now. I left both chillers running last night just in case there was an issue with the repaired chiller, both seemed to have run fine overnight.

I turned off Chiller 1 this morning and we will see how the other chiller does.