Check code
Location
of
detection
Description
System status
Check code
detection
condition(s)
Check items (locations)
Main
remote
controller
Outdoor 7-segment display
Check
code
Sub-code
L05
–
–
I/F
Duplicated
priority indoor
unit (as
displayed on
priority indoor
unit)
All stop
More than one indoor units
have been set up as priority
indoor unit.
• Check display on priority
indoor unit.
L06
L06
No. of priority indoor units
I/F
Duplicated
priority indoor
unit (as
displayed on
indoor unit other
than priority
indoor unit)
All stop
More than one indoor units
have been set up as priority
indoor unit.
• Check displays on priority
indoor unit and outdoor
unit.
L07
–
–
Indoor
unit
Connection of
group control
cable to stand-
alone 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.
L08
L08
–
Indoor
unit
Indoor group /
addresses not
set
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.
L09
–
–
Indoor
unit
Indoor capacity
not set
Stop of
corresponding
unit
Capacity setting has not been
performed for indoor unit.
Set indoor capacity. (DN =
11)
L10
L10
–
I/F
Outdoor
capacity not set
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.
L20
–
–
Network
adaptor
Indoor
unit
Duplicated
central control
address
All stop
There is duplication in central
control address setting.
• Check central control
addresses.
• Check network adaptor
P.C. board .
L28
L28
–
I/F
Too many
outdoor units
connected
All stop
There are more than three
outdoor units.
• Check No. of outdoor units
connected (Only up to 3
units per system allowed).
• Check communication
lines between outdoor
units.
• Check for defect in outdoor
P.C. board (I/F).
Check switch setting of
Bit 3 and 4 of SW17 in
outdoor P.C. board (I/F).
Outdoor P.C. board (I/F)
does not operate normally.
All stop
SW setting
mistake
I/F
–
–
L23
•
−
17
1
−
L12
L12
01:FS unit(s)
installation
trouble
I/F
FS unit(s) outside
the application
setting
All stop
Set up other than multi
port FS unit(s) to 44HP
or more system
・
Check outdoor unit model
name
・
Check FS unit model name
・
Check restricted installation
of FS unit
L24
L24
01:Duplication
of FS units
address
02:Indoor units
operation
mode priority
setting
I/F
FS unit(s) setting
trouble
Stop of
corresponding
unit(s)
・
Address setting has not
been performed for FS units
・
Priority setting has not been
performed for indoor units
・
Check FS units addres
・
Check indoor units operation
mode priority setting
・
Check outdoor unit 7
segment monitor
Check outdoor unit
model
Old model outdoor unit
(prior to 6 series) has
been connected
All stop
Incompatible
combination of
outdoor units
I/F
–
L
17
•
L
17
Check Cooling/Heating
FS unit
Cooling/heating cycle
trouble resulting from piping
trouble is detected
Stop of
corresponding
unit
FS unit
–
L
18
•
–
Cooling/heating
selection unit
trouble
Check set Cooling-
only setting.
•
Summary of Contents for MMY-MAP0806FT7(J)P
Page 32: ... 31 1 2 Single port FS Unit RBM Y1123FE FE2 RBM Y1803FE FE2 ...
Page 33: ... 32 RBM Y2803FE FE2 ...
Page 302: ...MMY MAP0806FT8 J P E MAP1006FT8 J P E MMY MAP0806FT8 J P TR MAP1006FT8 J P TR 301 ...
Page 307: ... 306 MMY MAP1206FT8 J P E MAP1406FT8 J P E MMY MAP1206FT8 J P TR MAP1406FT8 J P TR ...