Chec
k code
Wired remote
contr
oller
P01
P03
P04
P05
P07
P10
P12
Detected position
Indoor
I/F
I/F
I/F
IPDU I/F
Indoor
Indoor
Outdoor 7-segment displa
y
Chec
k code
A
uxiliar
y
code
——
P03
—
P04
01
:
Compressor 1 side
02
:
Compressor 2 side
03
:
Compressor 3 side
P05
00:
01
:
Compressor 1
02
:
Compressor 2
03
:
Compressor 3
P07
01
:
Compressor 1 side
02
:
Compressor 2 side
03
:
Compressor 3 side
P10
Indoor address with troub
le
——
Chec
k code name
Indoor f
an motor error
Discharge temp
TD1 error
Actuation of high-pressure SW
Open phase shor
tage/phase
sequence detection
In
ve
rter DC v
oltage (Vdc)
error (Compressor)
Heat sink o
verheat error
Indoor o
verflo
w error
Indoor f
an motor error
Status
Corresponding unit only stops
.
All stop
All stop
All stop
All stop
All stop
Corresponding unit only stops
.
E
rr
or detection condition
Discharge temp (TD1) e
xceeded
115°C
.
High-pressure SW actuated.
•
Open phase w
as detected when the
po
w
er tur
ned on.
•
O
ver
voltage/V
olt shor
tage w
as
detected in in
ver
ter DC v
oltage
IGBT b
uilt-in temp sensor (TH) w
as
ov
erheated.
•
Float s
witch oper
ated.
•
Float s
witch circuit disconnected or
the connector came off
.
•
The v
alue of motor speed de
viated
from target v
alue w
as detected f
or
cer
tain time
.
•
O
ver-current protection oper
ated.
Chec
k item (position)
•
Chec
k the loc
k of f
an motor (A
C
fan).
•
Chec
k cab
ling.
•
Chec
k full opening of outdoor ser
vice v
alv
es (Gas side
, Liquid side).
•
Chec
k clogging of outdoor PMV
. (PMV1,2, 4)
•
Chec
k character
istics of
TD1 sensor resistance v
alue
.
•
Chec
k refr
iger
ant shor
tage
.
•
Chec
k 4-w
ay
v
alv
e error
.
•
Chec
k leakage of SV4 circuit.
•
Chec
k SV4 circuit.
(Mis
wir
ing and misinstallation of SV41, SV42 and SV43)
•
Chec
k connection of high-pressure SW connector
.
•
Chec
k Pd pressure sensor error
.
•
Chec
k full opening of outdoor ser
vice v
alv
es (Gas side
, Liquid side).
•
Chec
k outdoor f
an error
.
•
Chec
k outdoor f
an motor error
.
•
Chec
k clogging of outdoor PMV
. (PMV1,2)
•
Chec
k clogging of indoor/outdoor heat e
xchangers
.
•
Chec
k shor
t-circuiting of outdoor suction/discharge air
.
•
Chec
k clogging of SV2 circuit.
•
Chec
k outdoor P
.C
. board (I/F) error
.
•
Chec
k indoor f
an system error
. (Cause of air v
olume decrease)
•
Chec
k opening of indoor PMV
.
•
Chec
k mis
wir
ing
of comm
unication line betw
een indoor and outdoor
.
•
Chec
k oper
ation error of chec
k v
alv
e of discharge pipe
.
•
Chec
k SV4 v
alv
e circuit.
•
Chec
k SV5 v
alv
e circuit.
•
Chec
k refr
igerant o
vercharge
.
•
Chec
k outdoor P
.C
. board (I/F) error
.
•
Chec
k po
wer
voltage
.
•
Chec
k outdoor f
an system error
.
•
Chec
k clogging of heat sink cooling duct.
•
Chec
k fixation between IGBT and heat sink.
(Chec
k scre
wing and contact.)
•
Chec
k IPDU error
.(IGBT b
uilt-in temp sensor (TH) error).
•
Chec
k the float s
witch connector
.
•
Chec
k oper
ation of drain pump unit.
•
Chec
k the drain pump circuit.
•
Chec
k clogging of dr
ain pipe
.
•
Chec
k indoor P
.C
. board error
.
•
Chec
k connection of f
an connector and wir
ing.
•
Chec
k f
an motor error
.
•
Chec
k indoor P
.C
. board error
.
•
Chec
k influence of outside air control.
FILE NO. SVM-17045
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