Toshiba MMY-MAP0724HT6UL - Page 130

129
Check code
Location
of
detection
Description System status Error detection condition(s) Check items (locations)
Wired
remote
control
Outdoor 7-segment display
Check
code
Sub-code
P22 P22
0∗: IGBT circuit
1∗: Position
detection circuit
error
3∗: Motor lockup
error
4∗: Motor
current
detection
C∗: TH sensor
temperature
error
D∗: TH sensor
error
E∗: Inverter DC
voltage error
(outdoor fan)
Note:
Although
letters 0 to F
appear at
locations
indicated by
“∗”, please
ignore them.
IPDU Outdoor fan
IPDU error
All stop (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.
• Check fan motor.
• Check for defect in fan IPDU P.C.
board.
All stop (Sub code: 1∗)
Fan IPDU position detection circuit
Position detection is not going on
normally.
• Check fan motor.
• Check connection of fan motor
connector.
• Check for defect in fan IPDU P.C.
board.
All stop (Sub code: 3∗)
Gusty wind, an obstruction, or
another external factor
Speed estimation is not going on
normally.
• Check fan motor.
• Check for defect in fan IPDU P.C.
board.
All stop (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.
• Check fan motor.
• Check connection of fan motor
connector.
• Check for defect in fan IPDU P.C.
board.
All stop (Sub code: C∗)
Higher temperature than the
specified value is detected during
operation of the fan.
• Check fan motor.
• Check for defect in fan IPDU P.C.
board.
All stop (Sub code: D∗)
The resistance value of the sensor
is infinite or zero (open or short
circuit).
• Check for defect in fan IPDU P.C.
board.
All stop (Sub code: E∗)
Fan IPDU DC voltage protection
circuit
The DC voltage higher or lower than
the specified value is detected.
• Check power voltage of the main
power supply.
• Check for defect in fan IPDU P.C.
board.
• Check connection of fan IPDU
P.C. board.
P26 P26
01: Compressor
1 side
02: Compressor
2 side
03: Compressor
3 side
IPDU G-TR short-
circuit
protection error
All stop Overcurrent is momentarily
detected during startup of
compressor.
• Check connector connection and
wiring on A3-IPDU P.C. board.
• Check for defect in compressor
(layer short-circuit).
• Check for defect in outdoor P.C.
board (A3-IPDU).
P29 P29
01: Compressor
1 side
02: Compressor
2 side
03: Compressor
3 side
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 defect in A3-IPDU P.C.
board.
P31 – –
Indoor
unit
Other indoor
error
(group follower
unit error)
Stop of
corresponding
unit
There is error in other indoor unit in
group, resulting in detection of E07/
L07/L03/L08.
• Check indoor P.C. board.