Indoor Unit Electronic Expansion Valve - Fujitsu Airstage V-II Service Manual

SERVICE PARTS INFORMATION 14

Indoor Unit Electronic Expansion Valve

(EEV)
Check Point 1 : Check Connections
Check Connectors (Loose connector or open cable.)
Duct
Floor/ Ceiling, Ceiling
Wall mount
Check Point 2 : Check Coil of EEV
Remove connector, check each winding resistance of Coil.
Read wire Resistance value (20°C)
White - Red
Yellow - Brown
Orange - Red
Blue - Brown
If Resistance value is abnormal, replace EEV.
Check Point 3 : Check Voltage from Controller PCB
Remove Connector and check Voltage (DC12V).
>> If it does not appear, replace Controller PCB.
Check Point 4 : Check Noise at start up
Turn on Power and check operation noise.
>> If an abnormal noise does not show, replace Controller PCB.
200 ± 10%
Small Wall mount
Cassette
DC
04-109