Cooling Troubleshooting Tips - Rheem FO13C Series Installation Instructions Manual

DIAGNOSTICS
SYSTEM
PROBLEM
Overcharge
Undercharge
Liquid Restriction
(Drier)
Low Indoor Airfl ow
Dirty Outdoor Coil
Low Outdoor
Ambient Temperature
Ineffi cient
Compressor
Indoor TXV Feeler
Bulb Charge Lost
46
COOLING MODE
TROUBLESHOOTING TIPS
DISCHARGE SUCTION
PRESSURE PRESSURE
High High
Low Low
Low Low
Low Low
High High
Low Low
Low High
Low Low
INDICATORS
SUPERHEAT
SUBCOOLING
Normal:
Normal: See
5°–15°F
Charging Chart
[-15° – -9°C]
Low High
High Low
High High
Low Low
Low Low
High High
High High
High High
COMPRESSOR
AMPS
High
Low
Low
Low
High
Low
Low
Low