Toshiba MMC-AP0157HP-E (TR), Service Manual

Page: 83 / 114

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FILE NO. SVM-13085
P22 P22
SMMS-i
(Series 4)
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 shortcircuit
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.
Check code
Location
of
detection
Description System status
Error detection
condition(s)
Check items (locations)
Outdoor 7-segment display
Sub-code
Check
code
Main
remote
controller
SVM-13085.indb 83 SVM-13085.indb 83 12/24/13 10:56 AM 12/24/13 10:56 AM