Mitsubishi Heavy Industries SRC25ZS-W2 - Maintenance; Air Inlet Panel Maintenance

'20 • SRF-SM-311
-
29
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'09•SRK-DB-087D
(7) Inspection procedures corresponding to detail of trouble
Sensor error
Temperature sensor characteristics (Room
temperature, indoor heat exchanger
temperature, outdoor heat exchanger
temperature, outdoor air temperature)
Temperature (˚C)
Resistance (k )
30
25
20
15
10
5
30
20
10
40 50 60
70
0
-
10
Discharge pipe temperature sensor characteristics
Indoor fan motor error
Broken sensor wire,
connector poor connection
0
020406080 100 120 135
20
40
60
80
100
120
140
160
180
Temperature (˚C)
Resistance (k )
Defective fan motor, connector poor
connection, defective indoor unit PCB
unit
Power source reset
Is it normalized?
Malfunction by temporary noise
Replace fan motor. (If the
error persists after replacing
the fan motor, replace the
indoor unit PCB.)
(Short-circuit) (Short-circuit)
.
.
pro
unit
unit
34 for the fan motor and indoor unit PCB check