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5-7. 4-way valve coil (solenoid coil)/4-way valve
Check point 1. Check connection
•
Check the connection of connector P60.
Check Point 2 : Check solenoid coil
Remove P60 from PCB and check the resistance value of coil.
Resistance Value ≈ 1.97 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 Operation
Heating Operation
4WAY VALVE
ON
HOT GAS
SOLENOID COIL
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
SOLENOID COIL
HOT GAS
AC
BLACK
4WV
1 1
BLACK
3 3
HOT GAS
Cooling Operation
Cooling Operation
4WAY VALVE
OFF
SOLENOID COIL
- (03-87) -
HOT GAS
AC
5. Service parts information
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