No
Ye
s
[E09]
Ye
s
No
[E10]
[E12]
Sub-code: 01: Communication between indoor and outdoor 02: Communication between outdoor units
Ye
s
No
Check code
Check code name
Cause
Check code
Check code name
Cause
Check code
Check code name
Cause
Duplicated header remote
controller
Setup of header remote controller is duplicated.
Communication trouble between
indoor MCUs.
Automatic address start trouble
Indoor P
.C. board trouble.
Are two remote
controllers set up as two
header remote
controllers?
Is there a known
power supply noise?
outdoor
unit of
other systems or an
indoor unit connected to
Set up one controller as the header and
the other follower
.
(Remote controller address connector)
Check remote controller.
Failure
Replace
Check indoor control P.C. board.
Trouble → Replace
Ye
s
No
Is connection
of power wire correct?
Correctly fix the power wire.
Check power voltage.
Improve the line condition.
Eliminate noise, etc..
The communication line of multiple lineages is connected to Uh (U3/U4)
T
urn on power of outdoor unit
again.
1.
Starting automatic addressing of indoor units during
automatic addressing in another refrigerant line.
(Sub-code: 01)
2.
Starting automatic addressing of outdoor units
during automatic addressing of indoor units
(Sub-code: 02)
Set
up
addr
ess
agai
n.
(R
efer
to “7
-4-
3. Addr
ess Set
up
Pr
ocedur
e”.
)
[E11]
Check code
Check code name
Cause
Communication trouble between
Application control kit and Indoor unit
1.Application control kit trouble
2. Indoor P.C. board trouble
Is the
connection f
or the
U
AR
T comm
unication
connector (indoor P
.C
. board
CN521 red/Application
control kit CN1 red)
nor
mal?
YES
NO
Is connector
lead wire f
or the U
AR
T
comm
unication cut?
Does Red
LED (LD1) on the
Application control
kit light up?
Red LED
(LD1) on the
Application control kit
repeatedly lights
up and flashes
on and off
.
.
Red LED (LD1)
of the Application control
kit b
links
.
Repair of connector
connection.
Chec
k the oper
ating status
.
YES
NO
YES
YES
NO
YES
NO
NO
Replacement of the
connector's lead wire
.
4-way cassette type, Compact 4-way cassette type
2-way cassette type, 1-
way cassette type (SH), Floor standing type
Replace the
Application control kit.
(TCB-PCUC2E)
Replace the
Application control kit.
(TCB-PCUC2E)
Replace indoor
P
.C
. board.
(MCC-1643)
Is
the
Uv
(U1/U2)
line
or
Uc
(U5/U6)
line?
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Summary of Contents for MMY-MUP0801HT7JP
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