Panasonic OCU-CR400VF8 Operating Instructions And Installation Instructions page 48

Failure Diagnosis
Method of Checking the Resistance of Electronic Expansion Valve Coil
Electronic expansion valve coil: Used in Electronic expansion valve for pressure reduction (MOV5),
Measure the resistance with the connector disconnected from the CR2-EN PCB, and check if the resistance
value is normal level by using the table below.
Measurement Position
Between connector 1-6
Between connector 2-6
Between connector 3-6
Between connector 4-6
Note: Ambient temperature 20°C
Caution
1. The CR2-EN PCB will fail when the refrigerator power is supplied while the coil resistance is 0 Ω (shorted).
2. When a motion failure of an electronic expansion valve is questioned, always check the resistance value of the
electronic expansion valve before replacing the CR2-EN PCB.
Electronic expansion valve for gas return (MOV6),
and Electronic expansion valve for liquid return (MOV7)
Resistance Value
185 Ω ± 18 Ω
185 Ω ± 18 Ω
185 Ω ± 18 Ω
185 Ω ± 18 Ω
< Electronic expansion valve connector >
6P13: Electronic expansion valve for pressure reduction (MOV5)
6P14: Electronic expansion valve for gas return (MOV6)
6P15: Electronic expansion valve for liquid return (MOV7)
[Resistance measurement method]
Contact the tester lead to the terminal.
EN - 48