Check code
Outdoor 7-segment display
Main
remote
Check
Sub-code
controller
code
#0:Element short circuit
#1:Position detection circuit
error
#3:Motor lock error
P22
P22
#4:Motor current error
#C:TH sensor
temperature error
#D:TH sensor short
circuit/release error
#E:Vdc voltage error
01: Compressor 1 side
02: Compressor 2 side
P26
P26
01: Compressor 1 side
02: Compressor 2 side
P29
P29
P31
–
–
Location
of
Description
System status
detection
Outdoor fan
IPDU
All stop
IPDU error
*Put in Fan
IPDU No. in [#]
mark
All stop
All stop
All stop
All stop
All stop
All stop
IPM short-
IPDU
All stop
circuit protection
error
IPDU
Compressor
All stop
position
detection circuit
error
Indoor
Other indoor
Stop of
unit
error
corresponding
(group follower
unit
unit error)
− 185 −
Error detection
Check items (locations)
condition(s)
(Sub code: #0)
Fan IPDU over current
protection circuit
•
Check fan motor.
Check for defect in fan IPDU
•
Flow of current equal to or
P.C. board.
greater than the specified
value is detected during
startup of the fan.
(Sub code: #1)
• Check fan motor.
• Check connection of fan
Fan IPDU position
motor connector.
detection circuit Position
• Check for defect in fan IPDU
detection is not going on
P.C. board.
normally.
(Sub code: #3)
Gusty wind, an obstruction,
•
Check fan motor.
or another external factor
•
Check for defect in fan IPDU
Speed estimation is not
P.C. board.
going on normally.
(Sub code: #4)
• Check fan motor.
Fan IPDU over current
• Check connection of fan
protection circuit
motor connector.
Flow of current equal to or
• Check for defect in fan IPDU
greater than the specified
P.C. board.
value is detected during
operation of the fan.
(Sub code: #C)
Higher temperature than
• Check fan motor.
the specified value is
• Check for defect in fan IPDU
detected during operation
P.C. board.
of the fan.
(Sub code: #D)
•
Check for defect in fan
The resistance value of
IPDU P.C. board.
the sensor is infinite or
zero (open or short circuit).
•
Check power voltage of
(Sub code: #E)
the main power supply.
Fan IPDU DC voltage
Check for defect in fan IPDU
•
protection circuit
P.C. board.
The DC voltage higher or
•
Check connection of fan
lower than the specified
IPDU P.C. board.
value is detected.
Overcurrent is momentarily
• Check connector
detected during startup of
connection and wiring on
compressor.
A3-IPDU P.C. board.
• Check for defect in
compressor (layer short-
circuit).
• Check for defect in
outdoor P.C. board (A3-
IPDU).
Position detection is not
• Check wiring and
going on normally.
connector connection.
• Check for compressor
layer short-circuit.
• Check for defect in A3-
IPDU P.C. board.
There is error in other indoor
• Check indoor P.C. board.
unit in group, resulting in
detection of E07/L07/L03/
L08.