Carrier MMY-MAP0964FT9UL - Page 155

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1
55
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No
Yes
Yes Yes
Yes
Yes
Yes
Yes
No
No
No
No
No
No
[E04]
No
No Ye s
Ye s Ye s Ye s
Ye s Ye s
No
No
No No
[E06]
S
ub-code: No. of indoor units which received si
g
nals normally
Check code
Check code
Check code name
C
heck code name
Cause
Cause
Dec
r
eased
n
u
m
be
r of in
d
oor
u
nit
s
Indoor/Outdoor communication circuit error (Detected at indoor side)
1
. Communication lines
(
U1, U2
)
connection error
be
tw
ee
n in
d
oor
a
n
d
o
u
t
d
oor
2
.
C
ommunication connector's connection error on
indoor unit
,
error on P.C. board
3
.
C
ommunication connector's connection error on
outdoor unit
,
error on I/F board
4
. Power suppl
y
of indoor unit (Is power turned on?)
1. Power of outdoor unit was firstly turned on. 2. Connection error of communication line between indoor and outdoor 3. End terminal resistance setup error on communication between indoor and outdoor 4. Address setup error
Is there no
miswiring/disconnection
on communication line
between indoor and
outdoor?
Was power turned on
in order of indoor unit
→ outdoor unit?
Is connection
(U1/U2 terminals) of
indoor/outdoor inter-unit
wire normal?
Is connector
connection from U1/U2
terminals of indoor/outdoor
inter-unit wire
normal?
Is the end terminal
resistance setup of outdoor
unit normal?
Is power applied to fuse
(F03) on indoor P.C.
board?
Is address setup correct?
Is there no noise, etc?
Is connection
of CN40 connector on
indoor P.C. board
normal?
Is connection of CN01
connector on outdoor I/F
P.C. board normal?
Is power of indoor unit
turned on?
Did a power failure
occur?
Is there no noise, etc?
Correct communication line.
Turn on power again in order of indoor unit → outdoor unit.
Correct inter-unit wire.
Correct connector connection.
Correct the end terminal resistance setup.
Set up address again.
Check noise, etc, and eliminate it if any.
Check connection of inter-unit wire between indoor and outdoor is correct, and then connect communication line connector on indoor P.C. board (CN40) to CN44 (EMG).
Correct wiring or connector.
Turn on power of indoor unit. Clear the check code. Check noise, etc, and eliminate it if any.
Check indoor P.C. board.
Defect →Replace
Check indoor P.C. board.
Defect →Replace
(NOTE) 1. When signal is not sent for a certain period from the indoor unit which has used to send signals normally, [E06] is displayed.
For details, refer to "8-5. Troubleshooting in Test Operation ".