Friedrich H)A09K25 User Manual

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Replace Reversing Valve
NO
NO
YES
YES
ELECTRICAL TROUBLESHOOTING CHART
HEAT PUMP
Reversing Valve Stuck
YES
Replace Solenoid Coil
Is the Solenoid 
Coil Good?
Is Line Voltage 
Present at 
Solenoid Valve?
Is Selector Switch 
set for Heat?
SYSTEM COOLS WHEN 
HEATING IS DESIRED.
HEAT  PUMP