Mitsubishi FDT100VNXWVH Service Manual page 65

(iv) Inspection procedures corresponding to detail of trouble
Sensor error
Sensor temperature characteristics (Room
temperature, indoor heat exchanger temperature)
30
25
20
15
10
5
-
- 10
10
0
Indoor fan motor error
unit
unit
Power source reset
Is it normalized?
Malfunction by temporary noise
20 70
30 40 50 60
Temperature (˚C)
unit
Replace fan motor. (If the
error persists after replacing
the fan motor, replace the
indoor unit PCB.)
.
procedure.
64
- -
'09•SRK-DB-087D
'20 • PAC-SM-351
Broken sensor wire,
connector poor connection
Defective fan motor, connector poor
connection, defective indoor unit PCB
.
66 for the fan motor and indoor unit PCB check
unit