Fujitsu AIRSTAGE V-II - 4-WAY Valve

Check the connection of connector CN 105
Check Point 3: Check Operation of 4 Way Valve
Heating OperationHeating Operation Cooling OperationCooling Operation
AC
AC
SOLENOID COIL
4WAY VALVE
SOLENOID COIL
4WAY VALVE
Check each piping temperature, and confirm the location of the valve by the temperature difference.
If the valve location is not proper, replace 4 way valve.
HOT GASHOT GAS
HOT GAS HOT GAS
Check Point 4: Check Voltage of Solenoid Coil
If CN6 of Control PCB dose not Show 220V + 20 V during Heating
operation (Compressor is in operation), replace Control PCB.
ON
OFF
CN105
BLUE
SOLENOID COIL
4WV
BLUE
1 1
2 2
Check Point 1 : Check Circuit connection
Check Point 2 : Check Solenoid Coil
SERVICE PARTS INFORMATION 18
4-WAY VALVE
Remove CN6 from PCB and check the resistance value
of coil
Resistance Value
1.5K
If it is Open or abnormal resistance value, replace
Solenoid Coil
-
04-114