Toshiba MMY-MAP0726FT2P-UL - Page 161

Check code
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
P26 P26
01: Compressor 1 side
02: Compressor 2 side
IPDU
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 trouble in
outdoor P.C. board
(A3-IPDU).
P29 P29
01: Compressor 1 side
02: Compressor 2 side
IPDU Compressor
position
detection circuit
trouble
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.
• Check fan motor.
• Check connection of fan motor
connector.
• 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 power voltage of
the main power supply.
(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).
(Sub code: #E)
Fan IPDU DC voltage
protection circuit
The DC voltage higher or
lower than the specified
value is detected.
All stop
All stop
All stop
All stop
All stop
All stop
All stop
IPDU
Outdoor fan
IPDU trouble
*Put in Fan
IPDU No. in [#]
mark
#0:Element short circuit
#1:Position detection circuit
trouble
#3:Motor lock trouble
#4:Motor current trouble
#C:TH sensor
temperature trouble
#D:TH sensor short
circuit/release trouble
#E:Vdc voltage trouble
P22 P22
•
Check for trouble in
fan IPDU
P.C. board.
• Check for trouble in fan IPDU
P.C. board.
• Check connection of fan
IPDU P.C. board.
− 160 −
•
• Check fan motor.
• 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 for trouble in fan
IPDU P.C. board