Toshiba MMY-MAP1006FT8(J)P-E Service Manual page 177

Check code
Outdoor 7-segment display
Main
remote
Check
Sub-code
controller
code
#0:Element short circuit
#1:Position detection circuit
trouble
#3:Motor lock trouble
P22 P22
#4:Motor current trouble
#C:TH sensor
temperature trouble
#D:TH sensor short
circuit/release trouble
#E:Vdc voltage trouble
01: Compressor 1 side
02: Compressor 2 side
P26 P26
01: Compressor 1 side
02: Compressor 2 side
P29 P29
P31 –
Location
of Description
detection
Outdoor fan
IPDU
IPDU trouble
*Put in Fan
IPDU No. in [#]
mark
IPDU IPM short-
circuit protection
trouble
IPDU Compressor
position
detection circuit
trouble
Indoor Other indoor
unit trouble
–
(group follower
unit trouble)
Check code detection
System status
condition(s)
(Sub code: #0)
Fan IPDU over current
protection circuit
All stop
Flow of current equal to or
greater than the specified
value is detected during
startup of the fan.
(Sub code: #1)
Fan IPDU position
All stop
detection circuit Position
detection is not going on
normally.
(Sub code: #3)
Gusty wind, an obstruction,
or another external factor
All stop
Speed estimation is not
going on normally.
(Sub code: #4)
Fan IPDU over current
protection circuit
Flow of current equal to or
All stop
greater than the specified
value is detected during
operation of the fan.
(Sub code: #C)
Higher temperature than
the specified value is
All stop
detected during operation
of the fan.
(Sub code: #D)
The resistance value of
All stop
the sensor is infinite or
zero (open or short circuit).
(Sub code: #E)
Fan IPDU DC voltage
protection circuit
All stop
The DC voltage higher or
lower than the specified
value is detected.
All stop Overcurrent is momentarily
detected during startup of
compressor.
All stop Position detection is not
going on normally.
Stop of There is trouble in other
corresponding indoor unit in group,
unit resulting in detection of
E07/L07/L03/L08.
− 176 −
Check items (locations)
• 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 power voltage of
the main power supply.
Check for trouble in fan IPDU
•
P.C. board.
Check connection of fan
•
IPDU P.C. board.
• 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).
• Check wiring and
connector connection.
• Check for compressor
layer short-circuit.
• Check for trouble in
A3-IPDU P.C. board.
• Check indoor P.C. board.