High Discharge Pressure
Non-condensable gases in the system.
Purge these gases from the system.
Recharge system if necessary.
Excessive charge of refrigerant in
Purge or pump out excessive charge.
Discharge service valve clogged.
Open discharge valve.
Clogged water strainer.
Inadequate supply of water to the
Make certain that inlet and outlet
water valves are fully open. Adjust
water regulating valves if necessary.
Make certain the condenser coil is
Low Discharge Pressure
System low on refrigerant.
Charge system untilsight glass is clear
of bubbles, or until unit contains a
total amount of poundage listed.
Excessive flow of water to the
Adjust water regulating valve.
Compressor valve broken.