Rheem P17 Series User Manual

72
9.13 Troubleshooting Tips
Diagnostics
9.0 DIAGNOSTICS & TROUBLESHOOTING
COOLING MODE
TROUBLESHOOTING TIPS
SYSTEM
PROBLEM
INDICATORS
DISCHARGE
PRESSURE
SUCTION
PRESSURE
SUPERHEAT
Normal: 5°–15°F
[2.8° – 8.3°C]
SUBCOOLING
Normal: See
Charging Chart
Overcharge
High High Low High
Undercharge
Low Low High Low
Liquid Restriction
(Drier)
Low Low High High
Low Low Low Low
Dirty Outdoor Coil
High High Low Low
Low Outdoor
Ambient Temperature
Low Low High High
Compressor
Low High High High
Bad Indoor Suction
Pressure Transducer or
Faulty Measurement
Low Low High High
Poorly Insulated
Indoor Vapor Line
Thermistor or Bad
Thermistor
High High Low Low
HEATING MODE
TROUBLESHOOTING TIPS
SYSTEM
PROBLEM
INDICATORS
DISCHARGE
PRESSURE
SUCTION
PRESSURE
SUPERHEAT
Normal: 5°–15°F
[2.8° – 8.3°C]
SUBCOOLING
Normal: See
Charging Chart
Overcharge
High High OK High
Undercharge
Low Low OK or High Low
Liquid Restriction
(Drier)
Low Low High High
Low Low Low Low
Dirty Indoor Coil
High High Low Low
Low Indoor Ambient
Temperature
Low Low OK High
Compressor
Low High High High
Low Low High High
High High Low Low
Bad Outdoor Suction
Pressure Transducer or
Faulty Measurement
Poorly Insulated
Outdoor Vapor Line
Thermistor or Bad
Thermistor

Rheem P17 Series Specifications

General

Brand	Rheem
Model	P17 Series
Category	Heat Pump
Language	English