Mitsubishi SRK09CH, Техническое руководство и список запасных частей, Страница: 63 / 100

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(2) Indication of Self Diagnosis (Indoor unit)
TIMER light is
lights
continuously.
RUN light is flashing.
(1 Time flash.)
RUN light is flashing.
(2 Time flash.)
RUN light is flashing.
(6 Time flash.)
TIMER light is flashing.
(2 Time flash.)
Connect of Defect
Abnormality of heat
exchanger sensor.
Abnormality of room
temperature sensor.
Abnormality of indoor
fan motor.
Abnormality of outdoor
unit.
Place of defect
¡
Disconnection of heat exchanger sensor.
¡
Disconnection of room temperature
sensor.
¡
Fan motor is defective.
¡
Printed circuit board is defective.
¡
Compressor is defective.
¡
Capacitor is defective.
¡
Gas is short.
RUN light is
lights
continuously.
Abnormality of sensor Disconnection of sensor and defective connection of connector
(Disconnection)
(Short circuit)
Resistance value
( k
Ω
)
Temperature (
°
C)
Is connection to connector
good?
Is sensor resistance value
normal?
Replace PCB.
Repair connector.
Replace sensor.
No
No
Yes
Yes
Chart for sensor temperature
resistance characteristics
(3) Troubleshooting
Abnormality of outdoor unit
[Compressor malfunction of insufficient gas (refrigerant)]
Abnormality of indoor fan motor
(Fan motor defective, printed circuit board defective)
No
No
Yes
Yes
Yes
Yes
Yes
No
No
Replace protective device.
Replace capacitor.
Is capacitor normal?
Insufficient gas.
Replace compressor.
Is protective device normal? Does compressor operate?
Clogging of capillary tube. etc.
Is abnormality the same after
gas charging?
Is refrigerant circulation
volume normal?
No
No
Yes
Yes
The fan motor is defective.
Repair the connector.
Is voltage being applied to the
fan motor?
The indoor circuit board
is defective.
Is the connector connection
good?