Panasonic OCU-CR200VF5 Operating Instructions And Installation Instructions page 48

Outdoor type refrigeration unit
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Failure Diagnosis
Method of Checking the Resistance of Electronic Expansion Valve Coil
■ Electronic expansion valve coil:
(Split cycle electronic expansion valve MOV3 and Adjusting refrigerant amount electronic expansion valve MOV4)
Measure the resistance value by disconnecting the connector from the control PCB, and check if the resistance value
is normal.
Control PCB will fail when the refrigerator power is supplied while the coil resistance is 0 Ω (shorted).
Caution
When a motion failure of an electronic expansion valve is questioned, always check the resistance
value of the electronic expansion valve before replacing the control PCB.
Measurement Position
Between connector 1-6
Between connector 2-6
Between connector 3-6
Between connector 4-6
(Ambient temperature: 20 °C)
Resistance Value
185 Ω ± 18 Ω
185 Ω ± 18 Ω
185 Ω ± 18 Ω
185 Ω ± 18 Ω
EN - 48
[Resistance measurement method]
Contact the tester lead
to the terminal.
< Electronic expansion valve wiring connector >
6P1: Split cycle electronic expansion valve (MOV3)
6P2: Adjusting refrigerant amount
electronic expansion valve (MOV4)

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