-
335
-
'12 • PAC-T-173
Remote controller
Indoor unit display
Outdoor control PCB
Outdoor inventer PCB
Location of trouble
Description of trouble
Repair method
Reference
page
Error code Red LED RUN light
TIMER
light
Red LED Green LED
Yellow LED
Keeps
flashing
Keeps
flashing
ON
• •
• •
• •
• •
• •
• •
• •
• •
• •
• •
• •
• •
ON
Keeps
flashing 1 time flash
1 time flash
Keeps
flashing
Installation or operating
condition
• Higher outdoor heat exchanger temperature
Repair
449
450
451
452
453
454
455
458
459
462
463
464
465
460
・
461
466
・
467
456
・
457
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
5 times
flash
2 times
flash
Keeps
flashing
Installation or operating
condition
• Higher discharge temperature
Repair
temperature thermistor • Defective discharge pipe temperature thermistor
Replacement, repair of
temperature thermistor
Outdoor control PCB *• Discharge pipe Defective outdoor control PCB (Defective temperature thermistor input
circuit)?
Replacement of PCB
Keeps
flashing
4 times
flash
7 times
flash
Keeps
flashing
4 times
flash
7 times
flash
Keeps
flashing
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
Outdoor control PCB *• Defective outdoor control PCB (Defective temperature thermistor input
circuit)?
Replacement of PCB
1 time flash
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
Outdoor control PCB *• Defective outdoor control PCB (Defective temperature thermistor input
circuit)?
Replacement of PCB
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
Outdoor control PCB *• Defective outdoor control PCB (Defective temperature thermistor input
circuit)?
Replacement of PCB
1 time flash
Keeps
flashing
Installation or operating
condition
• Rising high pressure (Operation of 63H1) • Service valve closing operation
Repair
Outdoor control PCB *• Defective outdoor control PCB (Defective 63H input circuit)?
Replacement of PCB
1 time flash
Keeps
flashing
6 times flash
Inverter PCB or radiator
fin
• Power transistor overheat
Replacement of PCB
or Repair
ON
ON
4 times
flash
ON
ON
1 time flash
1 time flash
Keeps
flashing
1 time flash
Outdoor control PCB
compressor
• Current cut (Anomalous compressor over-current)
Replacement of PCB
Installation or operating
condition
• Service valve closing operation
Repair
1 time flash
Keeps
flashing
Outdoor control PCB • Anomalous outdoor control PCB communication
Inverter PCB
• Anomalous inverter PCB communication
Replacement of PCB
1 time flash
Keeps
flashing
Keeps
flashing
Outdoor fan motor
• Anomalous outdoor fan motor
Replacement, repair
Outdoor control PCB *• Defective outdoor control PCB (Defective motor input circuit)?
Replacement of PCB
1 time flash
Keeps
flashing
Installation or operating
condition
• Low pressure error • Service valve closing operation
Repair
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
1 time flash
Keeps
flashing
6 times flash
Inverter PCB
• Anomalous inverter PCB
Replacement of PCB
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
Outdoor control PCB *• Defective outdoor PCB (Defective thermistor input circuit)?
Replacement of control
PCB
1 time flash
Keeps
flashing
Low pressure sensor
• Defective low pressure sensor
Replacement of sensor
Outdoor control PCB • Defective outdoor control PCB (Defective sensor input circuit)?
Replacement of control
PCB
1 time flash
Keeps
flashing
Operation status
• Shortage in refrigerant quantity
Repair
Installation status
• Service valve closing operation
Service valve opening
check
5 times
flash
Keeps
flashing
Stays OFF
Compressor,
inverter PCB
•Anomalous compressor startup
Replacement
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.
Indoor unit display panel
Outdoor unit control PCB
Description of trouble
Repair method
Error code
Red LED
RUN light
TIMER light
Red LED
Green LED
Keeps flashing
Stays OFF
Keeps flashing • Communication error (Defective communication circuit on the main unit of SC-SL2N-E or SC-SL3N-E) ete.
Replacement
−
−
b) SRK series
(iii) Optional controller in-use
1) FDT, FDTC, FDEN, FDU, FDUM, FDF series
Indoor unit control PCB
Outdoor unit control PCB
Description of trouble
Repair method
Error code
Red LED
Red LED
Green LED
Red LED
Green LED
Keeps flashing
Stays OFF
Keeps flashing
Stays OFF
Keeps flashing • Communication error (Defective communication circuit on the main unit of SC-SL2N-E or SC-SL3N-E) ete.
Replacement
2) SRK series
Summary of Contents for FDC Series
Page 95: ... 94 12 PAC T 173 Models FDT100VF 125VF 140VF H H H H H C B A F G D G PJF000Z285 ...
Page 98: ... 97 12 PAC T 173 Models FDEN60VF 71VF C 2 C 1 A B A B D C 1 C 2 C 1 C 2 E G F B PFA003Z817 ...
Page 113: ... 112 12 PAC T 173 b Wireless remote controller RCN E1R 60 17 150 Unit mm ...
Page 278: ... 277 12 PAC T 173 ー K ...
Page 346: ... 345 12 PAC T 173 Power PCB 1BSU OVNCFS 4GRNCEG VJG 2 ...
Page 518: ... 517 12 PAC T 173 3 5 SUPER LINK E BOARD SC ADNA E F SL2NA E and SL3N AE BE to control ...
Page 519: ... 518 12 PAC T 173 ...