Refrigerant Overcharge				Loose TXV bulb
	Refrigerant Undercharge				High Evaporator Airflow
	Restriction (Liquid Drier)				400/500 series refrigerant vapour charged
	Low Evaporator Airflow				Cross oil contamination
	Fouled or dirty condenser				Non-condensables
	Tight compressor (drag/seizing)				R-12 system with 10% R-134A mixed in
	Inefficient compressor				Large leak 400/500 series refrigerant
	TXV bulb charge lost				Low condensing ambient
	Electrical phase imbalance (3 phase)

HIGHER THAN NORMAL
LOWER THAN NORMAL

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