R-Pro › Field cases › Refrigeration systems
Reduced Cooling Capacity Due to Low Refrigerant Charge
Likely causes
Slow leak from somewhere in the circuit
Check: Check all pipes and joints with leak detector
What to do: Check all pipes and joints with leak detector → Repair any leak first — do not add refrigerant without fixing the leak → Recharge by accurate weight measurement → After charging, measure pressures, superheat, and subcooling → Record the charge amount
Inadequate initial charge
Check: Repair any leak first — do not add refrigerant without fixing the leak
What to do: Repair any leak first — do not add refrigerant without fixing the leak → Recharge by accurate weight measurement → After charging, measure pressures, superheat, and subcooling → Record the charge amount
Minor service port core leak
Check: Recharge by accurate weight measurement
What to do: Recharge by accurate weight measurement → After charging, measure pressures, superheat, and subcooling → Record the charge amount
Refrigerant charge is low. Always check for leaks before adding refrigerant. Adding refrigerant without fixing the leak is a temporary measure and causes environmental harm and legal liability.
All 565 cases work offline in R-Pro, with error codes for 62 brands and P-T data for 108 refrigerants.
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