Ye
s
No
Ye
s
Ye
s
Ye
s
No
No
No
[E18]
No
Ye
s
No
Ye
s
No
NG
OK
Ye
s
No
Ye
s
[E16]
Sub-code: 00 : Capacity over
, 01-: number of connected units
e
s
u
a
C
e
d
o
c
k
c
e
h
C
Check code name
e
s
u
a
C
e
d
o
c
k
c
e
h
C
Check code name
Number/capacity of connected
indoor units beyond the limit
1.
There are
27
or more connected indoor units.
2.
Capacity over of total connected indoor units.
3.
Incorrect setup of indoor units'
horse
power
Communication
trouble
between
indoor header and follower
Regular communication between indoor header and
follower is unavailable.
Is backup
operation of outdoor unit
being set up?
Are remote
controller inter-unit wires
(A/B) normal?
Is there any
disconnection of
connector or wiring from
terminal block of
indoor unit?
Is group
control operation
executed?
Are powers of all indoor
units turned on?
Check indoor address.
Is No. of connected
indoor units correct?
Is setup of indoor
units' HP
correct?
Is total capacity
of connected indoor
units correct?
For a service
P
.C. board, check
outdoor HP
setup.
(Set up jumper 9, 10, 1
1,
and 12.)
Indoor
over-
capacity has been
detected during the backup
operation.
Perform setup of no detection for
capacity over
. (*1)
Correct remote controller
inter-unit wire.
Correct connection of
connector
.
Check circuit wire.
Check power connection
status of indoor unit. (T
urn
on the power again.)
Check indoor P
.C. board.
Failure
Replace
Correct indoor address.
Excessive indoor units are
connected.
Correct miswiring.
Correct HP
setup.
Set capacity of connected indoor
units within each model
specification
s
of outdoor unit.
Check outdoor interface
P
.C. board.
(*1)
To deactivate the
over-
capacity detection
Turn SW09 Bit 2 on I/F P
.C. board of outdoor unit to ON.
(Usually OFF)
Set
up
outdoor
HP.
(Refer
“
1
2
P.C.
BOARD
EXCHANG
E PRO
CEDURES”.
)
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