Fujitsu ASU24RLF Service Instruction

SERVICE PARTS INFORMATION 6
Active filter module
02-44
Check Point 1 : Check Open or Short-circuit and Diode (D1)
Check Point 2 : Check the Output DC voltage (between P and N)
L2L1
P
N
+IN
Check the Output DC voltage (between P and N) of compressor stopping and operating.
If it is abnormal,replace ACTIVE FILTER MODULE
Remove connector, check the open or short-circuit and the diode in the module
>> 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
Terminal
Resistance value
L2
L1
L1,L2
P
P
Control Box
N
N
(+IN)
(+IN)
( IN)
( IN)
Tester(+) Tester(-)
Check the open or short-circuit
L2
P
P
N
L2
L2
Check the diode
0
360k
720k
1.69M /
20%
+
-
20%
+
-
360k
20%
+
-
(Ref. value 1)
1.88M
(Ref. value 2)
1.40M /
(Ref. value 1)
2.28M
(Ref. value 2)
Terminal
Resistance value
Tester(+) Tester(-)
1.32M /
(Ref. value 1)
1.50M
(Ref. value 2)
1.40M /
(Ref. value 1)
1.51M
(Ref. value 2)
Ref. value 1
Specifications for Multimeter
Manufacturer : HIOKI
Model name : 3804
Power source : DC9V.
Ref. value 2
Specifications for Multimeter
Manufacturer : YOKOGAWA
Model name : 7534
Power source : DC3V.
-IN
By kind of tester, the value may change significantly.
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Fujitsu ASU24RLF Specifications

General

Brand	Fujitsu
Model	ASU24RLF
Category	Air Conditioner
Language	English