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Discharge Pressure High Checklist
Improper Installation
•
Refer to "Installation/Visual Inspection Checklist"
on page 57.
Condenser Air Flow
•
High inlet air temperature
•
Condenser discharge air re-circulation
•
Dirty condenser fins
•
Defective fan cycling control
•
Defective fan motor
Improper Refrigerant Charge
•
Overcharged
•
Non-condensible in system
•
Wrong type of refrigerant
Other
•
Non-OEM components in system
•
High side refrigerant lines/component restricted
(before mid-condenser)
Freeze Cycle Discharge Pressure Low Checklist
Improper Installation
•
Refer to "Installation/Visual Inspection Checklist"
on page 57.
Improper Refrigerant Charge
•
Undercharged
•
Wrong type of refrigerant
Other
•
Non-OEM components in system
•
High side refrigerant lines/component restricted
(before mid-condenser)
•
Defective fan cycle control
NOTE: Do not limit your diagnosis to only the items
listed in the checklists.
Part Number STH045 8/15
69
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