Inspection Procedures Corresponding To Detail Of Trouble - Mitsubishi Heavy Industries SRK20ZJX-S Service Manual

(7) Inspection procedures corresponding to detail of trouble

Sensor error
Discharge pipe sensor temperature characteristics
180
160
140
120
100
80
60
40
20
0
0 20
Indoor fan motor error
Power supply reset
Is it normalized?
Malfunction by temporary noise
40 60 80 100 120
Temperature (˚C)
Replace fan motor. (If the
error persists after replacing
the fan motor, replace the
indoor PCB.)
-
Sensor temperature characteristics (Room
temp., indoor heat exchanger temp., out-
door heat exchanger temp., outdoor air
temp,outdoor suction pipe temp.)
30
25
20
15
10
5
- 10
135
57 for the fan motor and indoor PCB check pro-
52
-
'09•SRK-DB-087D
'10 • SCM-SM-094
Broken sensor wire,
connector poor connection
0 10 20 30 40 50
Temperature (˚C)
Defective fan motor, connector poor
connection, defective indoor PCB
60 70