Mitsubishi Heavy Industries SRK25GZ-L1 Handbook page 931

2) Louver motor does not operate
Inspect at the indoor unit side.
louver operate at
power on?
Operate more than
1 min. later
Is the louver
operated with the remote
It is normal Turn off and back on again
if it stops with the power and check the
2 pushes on LS motion of LS
Does the louver
link push the LS till
a click sound is
Defective LS
Replacement
Defective indoor unit PCB
Replacement
3) When the indoor unit blower does not operate
Inspect at the indoor unit side.
All of cooling,
blower heating, thermaldry
do not operate
Check FM
Is Voltage detected
between CNF
terminals?
Defective FM
1
(CF ) Replacement
1
Does the
NO
YES
Repair the wire
YES
Normal
controller
NO
NO
Ajust LS lever and
check again
heard?
YES
NO
YES
1
(1)
NO
YES
, capacitor
NO
Is LM wire
broken?
YES
Replace LM
Note(1) LM: Louver motor
LS: Limit swich
When some modes only operate.
Defective indoor unit PCB
Replacement
Check with the Hi, Me, Lo of blower
mode.
Defective indoor unit PCB
Replacement
FDC-HKX
NO
Is LM Defective indoor
locked? unit PCB
YES
929