LabRepCo GM-ULT-1786, Owner'S Manual

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12
Part number 21729, Rev 4
Sensor Errors
In addition to any alarms, the control will take the following action if it detects any of the
unit’s sensors as being in error
Alarm Result
Control Probe failure Both compressors will turn on and remain on.
Heat exchanger probe failure Compressor control during pull down will revert to timed
staging
Condenser probe failure Alarm only, no change in compressor control
Ambient probe failure Alarm only, no change in compressor control
Sample probe failure Alarm only, no change in compressor control
Line/boost voltage sensing Unit will operate normally, with boost voltage circuit Off