Fujitsu AU*A12LALN Service Instruction page 107

( For AU*A36L/ 45L )
SERVICE PARTS INFORMATION 3
Active Filter Module
Check Point 1 : Check Open or Short-circuit and Diode (D1)
Remove connector, check the open or short-circuit and the diode in the module
L1
(+)
( )
Power factor control
If it is abnormal,replace ACTIVE FILTER MODULE
Check Point 2 : Check the Output DC voltage (between P and N1)
Check the Output DC voltage (between P and N1) of compressor stopping and operating.
>> If the output voltage of compressor operating is less than the output voltage of compressor stopping,
Active Filter Module is detective. >> Replace Active Filter Module
L2
D1
N1
N2
Io
Check the open or short-circuit
Terminal
P
Tester(+) Tester(-)
(+)
( )
P
L1
P
L1,L2
Control Box
L2
Check the diode
Terminal
Tester(+) Tester(-)
L2
P
07-40
Resistance value
( )
360k
0
N1
(+)
720k
L2
5.4M
(approx.)
360k
N1
N2 5.8M
(approx.)
Resistance value
5.3M
P
(approx.)
5.4M
L2
(approx.)