Fujitsu ASU18RLF Service Instructions Manual page 98
Split type room air conditioner compact wall mounted / wall mounted / floor
compact cassette / slim duct inverter multi
Hide thumbs
Also See for ASU18RLF:
- Service instructions manual (66 pages) ,
- Design & technical manual (51 pages) ,
- Service manual (21 pages)
Table of Contents
Advertisement
SERVICE PARTS INFORMATION 9
IPM
(Mounted on Transistor PCB)
Test 1 : Check the Transistor of PCB ( for Resistance )
Disconnect the connection wires between the Transistor
PCB - Capacitor PCB and Transistor PCB - Inverter
Compressor.
Set the tester to the "Resistance" mode, and measure
the resistance between the following terminals.
IC400-30 (P) - TM403(U) / TM404(V) / TM405(W)
IC400-24 (N) - TM403(U) / TM404(V) / TM405(W)
Judge the result of
as follows:
Terminal
Resistance value
Tester(+)
Tester(-)
P
U
P
V
P
W
U
P
V
P
W
P
N
U
N
V
N
W
U
N
V
N
W
N
Test 2 : Check the Transistor of PCB ( for Diode )
Set the tester to the "Diode" mode, and measure the voltage value between the following terminals.
Judge the result of
as follows:
Terminal
Tester(+)
Tester(-)
P
U
P
V
P
W
U
P
V
P
W
P
N
U
N
V
N
W
U
N
V
N
W
N
Over 2k
(Including
)
Over 20k
(Including
)
Over 2k
(Including
)
Tester display
0.3V
0.7V
02-58
Hide quick links:
Advertisement
Chapters
Table of Contents
Troubleshooting
