Defrost Mechanical Checks Flow Chart - Rheem R-410A Installation Instructions Manual

18.5 Defrost Mechanical Checks Flow Chart

No Defrost
Reversing Valve Stuck
Welded Rev Valve
Loose Defrost
Check Coil Sensor
Connector
DEFROST SYSTEM
Incomplete Defrost
Poor Sensor Location
Wrong Defrost
Failed Defrost Relay
(doesn't stop O.D. Fan)
Thermostat Satisfies
Relay During Defrost
Sensor
Timer Setting Poor Sensor Location
Low System Charge
Excessive Defrost
Wind Affecting
in Defrost
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