Procedure of Self-Diagnosis by Remote Controller
SiBE28-804
150
Troubleshooting
3.4
Remote Controller Display Malfunction Code and
Contents
Malfunction Code
Contents/Processing
Remarks
A1
Failure of PC board ass’y for indoor unit
A3
Malfunction of drain water level system
A6
Indoor unit fan motor overload / overcurrent / lock (Note 1)
A7
Swing flap motor lock
A8
Abnormal power supply voltage
AF
Abnormal drain water level
Activation of float switch during compressor off.
AJ
Failure of capacity setting
Either capacity data is set incorrectly, or capacity
has not been set for the data IC
C1
Failure of transmission (between indoor unit PC
board and fan PC board)
C4
Malfunction of heat exchanger temperature
sensor system
C6
Failure of combination (between indoor unit PC
board and fan PC board)
C9
Malfunction of suction air temperature sensor
system
CJ
Malfunction of remote control air temperature
sensor system
Failure of remote controller air thermistor.
Unit can be operated by indoor unit thermistor.
CC
Malfunction of humidity sensor system
E1
Outdoor unit PC board malfunction
E3
High pressure malfunction (outdoor unit)
E4
Abnormality of low pressure (outdoor)
Failure of low pressure sensor system.
Check if the stop valve open.
E5
Compressor motor lock malfunction
Compressor motor lock, incorrect wiring.
E7
Outdoor fan motor lock or outdoor fan
instantaneous overcurrent malfunction
E9
Malfunction of electronic expansion valve
(outdoor unit)
F3
Discharge pipe temperature malfunction (outdoor
unit)
H3
Failure of high pressure switch (outdoor unit)
H9
Malfunction of outdoor air temperature sensor
system (outdoor unit)
(Note 2)
J1
Malfunction of pressure sensor
Applicable Models : (Note 3)
J3
Malfunction of discharge pipe temperature
sensor system (outdoor unit)
J3
Malfunction of discharge pipe temperature
sensor system (outdoor unit)
Applicable Models : (Note 3)
J5
Suction pipe thermistor malfunction
Failure of suction pipe thermister system
J6
Malfunction of heat exchanger temperature
sensor system (outdoor unit)
(Note 2)
J7
Malfunction of subcooling heat exchanger
thermistor (outdoor unit)
Applicable Models : (Note 3)
J8
Malfunction of liquid pipe thermistor (outdoor unit) Applicable Models : (Note 3)
JC
Malfunction of suction pressure sensor
Failure of suction pressure sensor system
L1
Outdoor PC board malfunction
Applicable Models : (Note 3)
L4
Radiation fin temperature rise
Malfunction of inverter cooling
L5
Instantaneous over current
Possibility of compressor motor grounding or
shortage of motor winding
L8
Electronic thermal
Possibility of compressor overload, open circuit in
compressor motor
L9
Stall prevention
Possibility of compressor seizing
LC
Malfunction of transmission system (between
control PC board and inverter PC board)
Summary of Contents for FHQ100BUV1B x 2
Page 13: ...SiBE28 804 2 ...
Page 19: ...Model Name and Power Supply SiBE28 804 8 General Information ...
Page 29: ...Specifications SiBE28 804 18 Specifications ...
Page 33: ...Wired Remote Controller SiBE28 804 22 Remote Controller 1 2 Installation ...
Page 34: ...SiBE28 804 Wired Remote Controller Remote Controller 23 ...
Page 93: ...Outdoor Unit Fan Speed Control SiBE28 804 82 Functional Description ...
Page 131: ...Test Run and Operation Data SiBE28 804 120 Test Operation ...
Page 251: ...Troubleshooting by Remote Controller Display LED Display SiBE28 804 240 Troubleshooting ...
Page 277: ...PCB Layout SiBE28 804 266 Appendix ...
Page 297: ...RZQ100 140C7 RZQS125 140C7V1B SiBE28 804 286 Removal Procedure ...
Page 311: ...SiBE28 804 iv Index ...