38
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
Summary of Contents for RA1418AJ1NA
Page 39: ...39 For Single Phase Models WIRING DIAGRAMS Wiring Diagrams...
Page 40: ...40 WIRING DIAGRAMS For Three Phase Models Wiring Diagrams...
Page 41: ...41 NOTES...
Page 42: ...42 NOTES...
Page 43: ...43 NOTES...
Page 44: ...44...
