5-7. 4-way valve coil (solenoid coil)/4-way valve
Check point 1. Check connection
• Check the connection of connector P60.
P60
BLACK
SOLENOID COIL
4WV
1 1
3 3
BLACK
↓
Check Point 2 : Check solenoid coil
Remove P60 from PCB and check the resistance value of coil.
Resistance Value ≈ 2.085 kΩ
→ If it is Open or abnormal resistance value, replace solenoid coil.
↓
Check Point 3: Check operation of 4-way valve
Check each piping temperature, and confirm the location of the valve by the temperature difference
Heating OperationHeating Operation
AC
SOLENOID COIL
4-way valve
HOT GAS
HOT GAS
ON
Cooling OperationCooling Operation
AC
SOLENOID COIL
4-way valve
HOT GAS
HOT GAS
OFF
→ If the valve location is not proper, replace 4-way valve.
↓
Check Point 4: Replace main PCB
If none of Checks 1 to 3 apply, replace the main PCB.
5-7. 4-way valve coil (solenoid coil)/4-way valve - (03-75) - 5. Service parts information
TROUBLESHOOTING
TROUBLESHOOTING
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