– 146 –
Check code
Location
of
detection
System status
Description
Error detection
condition(s)
Check items (locations)
Outdoor 7-segment display
Main
remote
controller
Check
code
Sub-code
L02
—
L02
Indoor unit
Stop of
corresponding
unit
In case of different outdoor unit. • Check outdoor unit model.
Outdoor units
model
disagreement
error
—
—
L03
Indoor unit
Stop of
corresponding
unit
There is more than one header
unit in group.
• Check indoor addresses.
• Check for any change made
to remote controller
connection (group/individual)
since indoor address setting.
Duplicated
indoor header
unit
L04
—
L04
I/F
All stop
There is duplication in line
address setting for outdoor
units belonging to different
refrigerant piping systems.
• Check line addresses.
Duplicated
outdoor line
address
—
—
L05
I/F
All stop
More than one indoor unit has
been set up as priority indoor
unit.
• Check display on priority
indoor unit.
Duplicated priority
indoor unit
(as displayed on
priority indoor unit)
—
—
L07
Indoor
unit
Stop of
corresponding
unit
There is at least one stand-
alone indoor unit to which group
control cable is connected.
• Check indoor addresses.
Connection of
group control
cable to stand-
alone indoor unit
L08
—
L08
Indoor
unit
Stop of
corresponding
unit
Address setting has not been
performed for indoor units.
• Check indoor addresses.
Note:
This code is displayed when
power is turned on for the
first time after installation.
Indoor group /
addresses not
set
L10
—
L10
I/F
All stop
Jumper wire provided on P.C.
board for servicing I/F P.C.
board has not been removed as
required for given model.
Check model setting of P.C.
board for servicing outdoor I/F
P.C. board.
Outdoor capacity
not set
—
—
L20
Indoor unit
All stop
There is duplication in central
control address setting.
• Check central control
addresses.
Duplicated
central control
address
L28
—
L28
L29
L29
I/F
All stop
There are more than 2
outdoor units.
• Check No. of outdoor units
connected (Only up to 2 units
per system allowed).
• Check communication lines
between outdoor units.
• Check for defect in outdoor
P.C. board (I/F).
Too many
outdoor units
connected
L30
L30
Indoor unit
Detected indoor
address
Stop of
corresponding
unit
• Signal is present at external
error input terminal (CN80) for
1 minute.
When external device is
connected to CN80
connector:
1) Check for defect in external
device.
2) Check for defect in indoor
P.C. board.
When external device is not
connected to CN80
connector:
1) Check for defect in indoor
P.C. board.
External interlock
of indoor unit
I/F
All stop
Insufficient number of IPDUs
are detected when power is
turned on.
• Check model setting of
P.C. board for servicing
outdoor I/F P.C. board.
• Check connection of UART
communication connector.
• Check A3-IPDU, fan IPDU,
and I/F P.C. board for defect.
Error in No. of
IPDUs
—
—
L09
Indoor unit
Stop of
corresponding
unit
Capacity setting has not been
performed for indoor unit.
Set indoor capacity. (DN = 11)
Indoor capacity
not set
L06
L06
I/F
No. of priority
indoor units
All stop
More than one indoor unit
have been set up as priority
indoor unit.
• Check displays on priority
indoor unit and outdoor unit.
Duplicated priority
indoor unit
(as displayed on
indoor unit other
than priority
indoor unit)
Symbol O
signifies site of
IPDU error.
1
O
O
O
O
O
O
O
O
2
O
O
O
O
O
O
O
O
3
O
O
O
O
O
O
O
O
A3-IPDU Fan
IPDU
01
02
03
04
05
06
07
08
09
0A
0B
0C
0D
0E
0F
O
O
O
O
O
O
O
O
Summary of Contents for MMY-MAP0724FT6UL
Page 35: ...35 3 5 Parts Layout in Outdoor Unit 072 type Model MMY MAP0724FT...
Page 36: ...36 096 120 type Model MMY MAP0964FT MAP1204FT...
Page 37: ...37 3 6 Parts Layout in Inverter Assembly 208 230V model MMY MAP0724FT9UL...
Page 38: ...38 208 230V model MMY MAP0964FT9UL MMY MAP1204FT9UL...
Page 39: ...39 460V model MMY MAP0724FT6UL...
Page 40: ...40 460V model MMY MAP0964FT6UL MMY MAP1204FT6UL...
Page 41: ...41 3 7 Outdoor Inverter print circuit board 3 7 1 Interface P C board MCC 1606...
Page 42: ...42 3 7 2 Inverter P C board for compressor MCC 1595 A3 IPDU For 208 230V model MMY MAP 4FT9UL...
Page 43: ...43 3 7 3 Inverter P C board for compressor MCC 1596 A3 IPDU For 460V model MMY MAP 4FT6UL...
Page 44: ...44 3 7 4 Inverter P C board for fan motor MCC 1610 FAN IPDU...
Page 45: ...45 3 7 5 Noise Filter P C board MCC 1608 A B For 208 230V model MMY MAP 4FT9UL...
Page 46: ...46 3 7 6 Noise Filter P C board MCC 1625 A B C For 460V model MMY MAP 4FT6UL...
Page 195: ...195...
Page 197: ...197...
Page 257: ...257 15 EXPLODED DIAGRAM PARTS LIST Outdoor unit 15 1 MMY MAP0724FT9UL...
Page 258: ...258 15 1 MMY MAP0724FT9UL...
Page 262: ...262 15 1 Inverter Assembly MMY MAP0724FT9UL...
Page 264: ...264 15 2 MMY MAP0964FT9UL MMY MAP1204FT9UL...
Page 265: ...265 15 2 MMY MAP0964FT9UL MMY MAP1204FT9UL...
Page 269: ...269 15 2 Inverter Assembly MMY MAP0964FT9UL MMY MAP1204FT9UL...
Page 271: ...271 15 3 MMY MAP0724FT6UL...
Page 272: ...272 15 3 MMY MAP0724FT6UL...
Page 276: ...276 15 3 Inverter Assembly MMY MAP0724FT6UL...
Page 278: ...278 15 4 MMY MAP0964FT6UL MMY MAP1204FT6UL...
Page 279: ...279 15 4 MMY MAP0964FT6UL MMY MAP1204FT6UL...
Page 283: ...283 15 4 Inverter Assembly MMY MAP0964FT6UL MMY MAP1204FT6UL...