70 Part Number STH044 10/13
Discharge Pressure Low Checklist
NOTE: Do not limit your diagnosis to only the items
listed in the checklists.
Problem Cause
Improper
installation
Refer to “Installation/Visual Inspection
Checklist.”
Improper
refrigerant
charge
Undercharged
Wrong type of refrigerant
Other
Low ambient temperature
Non-Manitowoc components in system
High side refrigerant lines/component
restricted (before mid-condenser)
Suction pressure is too low and affecting
discharge pressure. (Refer to “Suction
Pressure Low Checklist.”)
No water or insufficient pressure
Expansion valve incorrectly adjusted
Defective compressor
Moisture in refrigeration system
To Next Page
Loading...
Need help?
General