Rheem RA13 Series - Cooling;Heating Tips; Diagnostics

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Diagnostics
DIAGNOSTICS
COOLING MODE
TROUBLESHOOTING TIPS
SYSTEM
PROBLEM
INDICATORS
DISCHARGE
PRESSURE
SUCTION
PRESSURE
SUPERHEAT
Normal: 5°–15°F
[-15° – -9°C]
SUBCOOLING
Normal: See
Charging Chart
COMPRESSOR
AMPS
Overcharge
High High Low High High
Undercharge
Low Low High Low Low
Liquid Restriction
(Drier)
Low Low High High Low
Low Indoor Airflow
Low Low Low Low Low
Dirty Outdoor Coil
High High Low Low High
Low Outdoor
Ambient Temperature
Low Low High High Low
Inefficient
Compressor
Low High High High Low
Indoor TXV Feeler
Bulb Charge Lost
Low Low High High Low
Poorly Insulated
Indoor Sensing Bulb
High High Low Low High