126
P22
P22
IPDU
Outdoor fan
IPDU error
P26
P26
–
IPDU
IGBT (IPM)
short-circuit
protection trouble
All stop
Overcurrent is momentarily
detected during startup of
compressor.
Check connector
connection and wiring on
A3-IPDU P.C. board.
Check for trouble in
compressor (layer short-
circuit).
Check for defect in outdoor
P.C. board (A3-IPDU).
P29
P29
–
IPDU
Compressor
position
detection circuit
error
All stop
Position detection is not
going on normally.
Check wiring and
connector connection.
Check for compressor
layer short-circuit.
Check for trouble in A3-
IPDU P.C. board.
P31
–
–
Indoor
unit
Other indoor
trouble
(group follower
unit trouble)
Stop of
corresponding
unit
There is trouble in other indoor
unit in group, resulting in
detection of E07 / L07 / L03 /
L08.
Check indoor P.C. board.
Location
of
detection
Description
System status
Check code detection
condition(s)
Check items (locations)
Main
remote
controller
Outdoor 7-segment display
Check
code
Sub-code
Put in Fan IPDU
No. in [*] mark
All stop
All stop
All stop
All stop
All stop
All stop
*0: IGBT short
circuit
*1: Position
detection circuit
trouble
*3: Motor lockup
trouble
*4: Motor current
detection
*C: TH sensor
temperature
trouble
*D: TH sensor
short, open trouble
(Sub code: *0)
Fan IPDU over current
protection circuit
Flow of current equal to or
greater than the specified
value is detected during
startup of the fan.
(Sub code: *1)
Fan IPDU position detection
circuit.
Position detection is not
going on normally.
(Sub code: *3)
Gusty wind, an obstruction, or
another external factor.
Speed estimation is not going
on normally.
(Sub code: *4)
Fan IPDU over current
protection circuit.
Flow of current equal to or
greater than the specified
value is detected during
operation of the fan
(Sub code: *C)
Higher temperature than the
specified value is detected
during operation of the fan.
(Sub code: *D)
The resistance value of the
sensor is infinite or zero
(open or short circuit)
・
Check fan motor.
・
Check for trouble in fan
IPDU P.C. board.
・
Check fan motor.
・
Check connection of fan
motor connector.
・
Check for trouble in fan
IPDU P.C. board.
・
Check fan motor.
・
Check for trouble in fan
IPDU P.C. board.
・
Check fan motor.
・
Check connection of fan
motor connector.
・
Check for trouble in fan
IPDU P.C. board.
・
Check fan motor.
・
Check for trouble in fan
IPDU P.C. board.
・
Check for trouble in fan
IPDU P.C. board.
Check code
116
A10-1510.indb 116
A10-1510.indb 116
2016/04/08 17:21:10
2016/04/08 17:21:10
AMP Air Conditioning
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