Error Code Indication By Outdoor Unit Pcb - Daikin VRV IV-S RXTQ-TAVJU Series Service Manual

Service Check Function
3.4

Error Code Indication by Outdoor Unit PCB

Monitor mode
To enter the monitor mode, press
the MODE (BS1) button when in
"Setting mode 1".
Selection of setting item
Press the SET (BS2) button and set
the LED display to a setting item.
Confirmation of error 1
Press the RETURN (BS3) button
once to display "First digit" of error
code.
Confirmation of error 2
Press the SET (BS2) button once to
display "Second digit" of error code.
Confirmation of error 3
Press the SET (BS2) button once to
display "error location".
Confirmation of error 4
Press the SET (BS2) button once to
display "master or slave 1 or slave 2"
and "error location".
Press the RETURN (BS3) button
and switches to the initial status of
"Monitor mode".
∗ Press the MODE (BS1) button and
returns to "Setting mode 1".
131
PCB abnormality
Abnormal high pressure switch
Abnormal low pressure switch
Compressor lock
Overload, overcurrent,
abnormal lock of outdoor unit fan motor
Electronic expansion valve
abnormality
Abnormal discharge pipe temperature
Abnormal heat exchanger temperature Refrigerant overcharge
Defective thermistor of outdoor air
temperature
Defective discharge pipe thermistor
Defective suction pipe thermistor
Defective outdoor heat exchanger
deicer thermistor
Defective outdoor heat exchanger
liquid pipe thermistor
Defective subcooling heat exchanger
gas pipe thermistor
Defective sensor of high pressure
Defective sensor of low pressure
Detailed Defective PCB (for inverter
compressor)
description
on next
page.
Inverter radiation fin temperature rising Overheating of inverter radiation fin temperature
DC output overcurrent
Electronic thermal
Stall prevention (Limit time)
Transmission error (Between microcomputers on the outdoor main PCB)
Contents of Error
High pressure switch activated
Low pressure switch activated
Detection of INV. compressor lock
Detection of DC fan 1 motor lock
Detection of DC fan 2 motor lock
Main
Subcooling
Abnormal Tdi
Defective Ta sensor (short)
Defective Tdi sensor (short)
Defective Ts1 sensor (short)
Defective Ts2 sensor (short)
Defective Tb sensor (short)
Defective TI sensor (short)
Defective Tsh sensor (short)
Defective Pc sensor (short)
Defective Pe sensor (short)
Defective IPM
Abnormal current sensor offset
Abnormal IGBT
Defective current sensor
Abnormal SP-PAM overvoltage
Abnormal Interleave
Abnormal inverter jumper setting
Abnormal EEPROM
Inverter instantaneous overcurrent
Electronic thermal switch 1
Electronic thermal switch 2
Out-of-step
Speed down after startup
Lightening detection
Stall prevention (Current increasing)
Stall prevention (Defective start up)
Abnormal wave form in startup
Out-of-step
SiUS331604E
Error Code
E1
E3
E4
E5
E7
E9
F3
F6
H9
J3
J5
J6
J7
J9
JA
JC
L1
L4
L5
L8
L9
LC
Service Diagnosis