Mitsubishi Electric SRK100VNPZJX, Техническое руководство

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'12 • PAC-T-174
(ii) Outdoor unit
1) FDT, FDTC, FDEN, FDU, FDUM, FDF series
Remote controller Indoor control PCB Outdoor control PCB Outdoor inventer PCB
Location of trouble Description of trouble Repair method
Reference
page
Error code Red LED Red LED
Green
LED (1)
Red LED
Green
LED (1)
Yellow
LED (3)or
Red LED (4)
Green
LED (2)
Stays OFF
Keeps
flashing 1 time flash
Keeps
flashing
Keeps
flashing
Keeps
flashing
Installation or operating
condition
• Higher outdoor heat exchanger temperature Repair
388
Outdoor heat exchanger
temperature thermistor • Defective outdoor heat exchanger temperature thermistor
Replacement of
temperature thermistor
Outdoor control PCB *• Defective outdoor control PCB (Defective temperature thermistor input
circuit)?
Replacement of PCB
Stays OFF
Keeps
flashing 1 time flash
Keeps
flashing
Installation or operating
condition
• Higher discharge temperature Repair
389
Discharge pipe
temperature thermistor • Defective discharge pipe temperature thermistor
Replacement, repair of
temperature thermistor
Outdoor control PCB *• Defective outdoor control PCB (Defective temperature thermistor input
circuit)?
Replacement of PCB
Stays OFF
Keeps
flashing 1 time flash
Keeps
flashing
Outdoor heat exchanger
temperature thermistor
• Defective outdoor heat exchanger temperature thermistor, broken wire or poor
connector connection
Replacement, repair of
temperature thermistor
390
Outdoor control PCB *• Defective outdoor control PCB (Defective temperature thermistor input
circuit)?
Replacement of PCB
Stays OFF
Keeps
flashing 1 time flash
Keeps
flashing
Outdoor air temperature
thermistor
• Defective Outdoor air temperature thermistor, broken wire or poor connector
connection
Replacement, repair of
temperature thermistor
391
Outdoor control PCB *• Defective outdoor control PCB (Defective temperature thermistor input
circuit)?
Replacement of PCB
Stays OFF
Keeps
flashing 1 time flash
Keeps
flashing
Discharge pipe
temperature thermistor
• Defective discharge pipe temperature thermistor, broken wire or poor
connector connection
Replacement, repair of
temperature thermistor
392
Outdoor control PCB *• Defective outdoor control PCB (Defective temperature thermistor input
circuit)?
Replacement of PCB
Stays OFF
Keeps
flashing 1 time flash
Keeps
flashing
Installation or operating
condition
• Rising high pressure (Operation of 63H1) • Service valve closing operation Repair
393
Outdoor control PCB *• Defective outdoor control PCB (Defective 63H input circuit)? Replacement of PCB
Stays OFF
Keeps
flashing 1 time flash
Keeps
flashing
2 times flash
or
6 times flash
Inverter PCB or radiator
fin
• Power transistor overheat
Replacement of PCB
or Repair
394
・
395
Stays OFF
Keeps
flashing 1 time flash
Keeps
flashing
1 time flash
or
5 times flash
Outdoor control PCB
compressor
• Current cut (Anomalous compressor over-current) Replacement of PCB
396
・
397
Installation or operating
condition
• Service valve closing operation Repair
Stays OFF
Keeps
flashing 1 time flash
Keeps
flashing
Keeps
flashing
Outdoor control PCB • Anomalous outdoor control PCB communication
Service valve opening
check
398
Inverter PCB • Anomalous inverter PCB communication Replacement of PCB
Stays OFF
Keeps
flashing 1 time flash
Keeps
flashing
Outdoor fan motor • Anomalous outdoor fan motor Replacement, repair
399
Outdoor control PCB *• Defective outdoor control PCB (Defective motor input circuit)? Replacement of PCB
Stays OFF
Keeps
flashing 1 time flash
Keeps
flashing
Installation or operating
condition
• Low pressure error • Service valve closing operation Repair
400
・
401
Low pressure sensor
• Anomalous low pressure, broken wire of low pressure sensor or poor
connector connection
Replacement, repair of
sensor
Outdoor control PCB *• Defective outdoor control PCB (Defective sensor input circuit)?
Replacement of control
PCB
Stays OFF
Keeps
flashing 1 time flash
Keeps
flashing
2 times flash
or
6 times flash
Inverter PCB • Anomalous inverter PCB Replacement of PCB 402
Stays OFF
Keeps
flashing 1 time flash
Keeps
flashing
Keeps
flashing
Suction pipe
temperature thermistor
• Defective suction pipe temperature thermistor, broken wire or poor connector
connection
Replacement, repair of
temperature thermistor
403
Outdoor control PCB *• Defective outdoor PCB (Defective thermistor input circuit)?
Replacement of control
PCB
Stays OFF
Keeps
flashing 1 time flash
Keeps
flashing
Low pressure sensor • Defective low pressure sensor Replacement of sensor
404
Outdoor control PCB • Defective outdoor control PCB (Defective sensor input circuit)?
Replacement of control
PCB
Stays OFF
Keeps
flashing 1 time flash
Keeps
flashing
Compressor underneath
temperature thermistor
• Defective compressor underneath temperature thermistor (Models 200, 250
only)
Replacement of
temperature thermistor
405
Outdoor control PCB • Defective outdoor control PCB (Defective thermistor input circuit)? (Models
200, 250 only)
Replacement of control
PCB
Stays OFF
Keeps
flashing 1 time flash
Keeps
flashing
Operation status • Shortage in refrigerant quantity Repair
406
Installation status • Service valve closing operation
Service valve opening
check
Stays OFF
Keeps
flashing
5 times
flash
Keeps
flashing
Stays OFF or
4 times
flash
Compressor inverter
PCB
• Anomalous compressor startup Replacement 407
・
408
Stays OFF
Keeps
flashing 1 time flash
Keeps
flashing
Keeps
flashing
Compressor • Anomalous compressor rotor position detection (Models 200, 250 only) Replacement 409
Note (1) * mark in the Description of trouble means that, in ordinary diagnosis, it cannot identify the cause definitely, and, if the trouble is repaired by replacing the part, it
is judged consequently that the replaced part was defective.
(2) This LED is installed on models FDC200, 250VS
(3) This LED is installed on models FDC100-140VN, FDC100-140VS
(4) This LED is installed on models FDC200, 250VS