Self Diagnosis Function - Mitsubishi Heavy Industries SRK63ZK-S Manual Del Propietário

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Self diagnosis function

We are constantly trying to do better service to our customers by installing such judges that show abnormality of each function as follows:
TIMER light ON
RUN light keeps flashing
RUN light ON
RUN light 2 time flash
RUN light
Description of trouble
Heat exchanger sensor 1 error
1 time flash
2 time flash
Room temperature sensor error
3 time flash
Heat exchanger sensor 3 error
Active filter voltage error
5 time flash
6 time flash
Indoor fan motor error
Refrigerant is insufficient
7 time flash
Closed service valve
Heat exchanger sensor 1 error
TIMER light
Outdoor temperature sensor error
1 time flash
Outdoor heat exchanger fluid pipe
2 time flash
sensor error
4 time flash
Discharge pipe sensor error
5 time flash
Suction pipe sensor error
Current cut
1 time flash
Trouble of outdoor unit
2 time flash
Over current
3 time flash
4 time flash
Power transistor error
5 time flash
Over heat of compressor
Error of signal transmission
6 time flash
7 time flash
Outdoor fan motor error
Keep flashing
Cooling high pressure protection
2 time flash
Rotor lock
– 21 –
Cause
• Broken heat exchanger sensor 1 wire, poor connector
connection
Broken room temperature sensor wire, poor connector
connection
• Broken heat exchanger sensor 3 wire, poor connector
connection
• Defective power supply
• Defective fan motor, poor connector connection
Refrigerant is insufficient, leaking
Closed serice valve
Broken heat exchanger sensor 1 wire, poor connector
connection
• Broken outdoor sensor wire, poor connector connection
Broken heat exchanger fluid pipe sensor wire, poor
connector connection
• Broken discharge pipe sensor wire, poor connector connection.
• Broken suction pipe sensor wire, poor connector connection
Compressor locking, open phase on compressor
output, shortcircuit on power transistor, closed service
valve
• Broken power transistor, broken compressor wire
• Broken discharge pipe sensor wire, poor connector connection
• Compressor blockage
• Overload operation, overcharge
• Broken power transistor
Gas shortage, defective discharge pipe sensor,
closed service valve
Defective power supply, Broken signal wire, defective
in/outdoor unit boards
• Defective fan motor, poor connector connection
• Gas over charge, short circuit of outdoor unit
• Defective compressor
• Open phase on compressor
• Defective outdoor unit boards

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