Fujitsu AOYG45LAT8 User Manual

SERVICE PARTS INFORMATION 4
Outdoor Unit Electronic Expansion Valve (EEV2)
CN111
CN112
EEV1
EEV2
Check Point 1 : Check Connections
Check connection of connector (CN112)
(Loose connector or open cable)
Check Point 2 : Check Coil of EEV
Remove connector, check each winding resistance of Coil.
If Resistance value is abnormal, replace EEV.
Read wire
46 ± 4
Resistance value (20°C)
Check Point 3 : Check Voltage from Controller PCB
Remove Connector and check Voltage (DC12V).
>>
If it does not appear, replace Controller PCB.
White - Red
Orange - Red
Yellow - Red
Blue - Red
DC
Check Point 5 : Check Opening and Closing Operation of Valve
When Valve is closed,
it has a temp. difference between Inlet and Outlet.
Pipe (In) Pipe (Out)Pipe (In) Pipe (Out)
Check Point 6 : Check Strainer
Strainer normally does not have temperature difference between inlet and outlet as shown in (1), but if there is a difference
as shown in (2), there is a possibility of inside clogged. In this case, replace Strainer.
(1) (2)
If it is open,
it has no temp. difference between Inlet and Outlet.
Pipe (In)
Pipe (Out)
Hi TEMP.
Normal TEMP.
CLOSE
Example : Hot GUS
Pipe (In)
Pipe (Out)
Hi TEMP.
Hi TEMP.
OPEN
Example : Hot GUS
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.
02-68

Fujitsu AOYG45LAT8 Specifications

General

Brand	Fujitsu
Model	AOYG45LAT8
Category	Air Conditioner
Language	English