Koolaire STH045 8/15 Technician's Handbook page 72

Suction Pressure High Checklist
Improper Installation
• Refer to "Installation/Visual Inspection Checklist"
on page 57.
Discharge Pressure
• Discharge pressure is too high, and is affecting
suction pressure, refer to "Discharge Pressure
High Checklist" on page 69.
Improper Refrigerant Charge
• Overcharged
• Wrong type of refrigerant
• Non-condensible in system
Other
• Non-OEM components in system
• Harvest valve leaking
• TXV flooding (check bulb mounting)
• Defective compressor
72 Part Number STH045 8/15