33
RS4100004 Rev. 0
Performance Tests
!
WARNING
To avoid risk of electrical shock, personal injury, or death, disconnect electrical power source to unit and
discharge capacitor through a 10,000 ohm resistor before attempting to service, unless test procedures require
power to be connected. Ensure all ground wires are connected before certifying unit as repaired and/or
operational.
Performance Test Results
Possible Malfunctions
Cooling wattage and cooling range both
Refrigerant charge low.
below minimum requirement.
Starved indoor coil.
Sealed system leak.
Restricted capillary tube.
Weak (inefficient) compressor.
Cooling wattage and cooling range both
Refrigerant over charged.
exceed maximum requirement.
Slow fan motor.
Cooling wattage below minimum requirement,
Restricted air flow (dirty filter, dirty evaporator coil, dirty
cooling range exceeds maximum
condenser coil).
requirement.
Performance Test Diagnosis Guide
Use following chart to determine possible causes for
performance test failures.
