Toshiba MMU-AP0072WH, Service Manual

Page: 83 / 160

83
Check code
Wired
remote
controller
P22
P26
P29
P31
Outdoor 7-segment display
Check code Auxiliary code
P22 0
∗
: IGBT circuit
1
∗
: Output circuit error between
each position
3
∗
: Motor lock error
4
∗
: Detection of motor current
C
∗
: TH sensor error
D
∗
: TH sensor error
E
∗
: Inverter DC voltage error
(Outdoor unit fan)
Note)
In “
∗
”, 0 to F is displayed,
but ignore it.
P26 01: Compressor 1 side
02: Compressor 2 side
03: Compressor 3 side
P29 01: Compressor 1 side
02: Compressor 2 side
03: Compressor 3 side
— —
Detected
position
IPDU
IPDU
IPDU
Indoor
Check code name
Outdoor fan IPDU error
G-Tr short-circuit
protection error
Compressor position
detection circuit error
Other indoor error
(Group follower unit
error)
Status
All stop
All stop
All stop
All stop
All stop
All stop
All stop
All stop
All stop
All stop
Corresponding
unit only stops.
Error detection condition
(Auxiliary code: 08)
Fan IPDU position detection circuit
Position detection was not normally performed.
(Auxiliary code: 0A)
Fan IPDU over-current protective circuit
When the fan started and while it is operating,
the status that current flows over constant flow
was detected
(Auxiliary code: 0E)
Fan IPDU position detection circuit
Position detection was not normally performed.
(Auxiliary code: 0F)
Fan IPDU position detection circuit
Position detection was not normally performed.
(Auxiliary code: 06)
External cause such as blast
Position detection was not normally performed.
(Restart after 6 seconds)
(Auxiliary code: 04)
External cause such as blast
When difference between target rpm and real
rpm is 25% or more (Restart after 6 seconds)
(Auxiliary code: 0D)
Fan IPDU position detection circuit
Position detection was not normally performed.
(Windless status)
(Auxiliary code: 0C)
External cause such as blast
Position detection was not normally performed.
(Windy status) (Restart after 6 seconds)
Instantaneous over-current was detected when
compressor started.
Position was not normally detected.
E07/L07/L03/L08 was detected when other
indoor unit in the group was defective.
Check item (position)
• Fan motor check
• Connection check of connector for fan motor
• Error check of IPDU P.C. board for fan
• Fan motor check
• Error check of IPDU P.C. board for fan
• Fan motor check
• Connection check of connector for fan motor
• Error check of IPDU P.C. board for fan
• Fan motor check
• Connection check of connector for fan motor
• Error check of IPDU P.C. board for fan
• Fan motor check
• Connection check of connector for fan motor
• Fan motor check
• Connection check of connector for fan motor
• Fan motor check
• Connection check of connector for fan motor
• Error check of IPDU P.C. board for fan
• Fan motor check
• Connection check of connector for fan motor
• Check connector connection and wiring on Comp. IPDU P.C. board.
• Check compressor error and defect of compressor coil.
• Check outdoor P.C. board (Comp. IPDU) error.
• Check connector connection and wiring.
• Check compressor error and defect of compressor coil.
• Check P.C. board (Comp. IPDU) error.
• Check indoor P.C. board.