64
Chec
k code
Wired remote
contr
oller
P13
P15
P17
P18
P19
P20
Outdoor 7-segment displa
y
Chec
k code
A
uxiliar
y
code
P13
—
P15
01
:
TS condition
02
:
TD condition
P17
—
P18
—
P19
Detected outdoor unit No
.
P20
—
Detected position
I/F
I/F
I/F
I/F
I/F
I/F
I/F
Chec
k code name
Outdoor liquid bac
k
detection error
Gas leak detection (TS1 condition)
Gas leak detection (TD condition)
Discharge temp TD2 error
Discharge temp
.
TD3 error
4-w
ay
v
alv
e
oper
ation error
High-pressure protectiv
e oper
ation
Status
All stop
All stop
All stop
All stop
All stop
All stop
All stop
E
rr
or detection condition
<In cooling>
While the system oper
ated in cooling mode
, high ststus
of high pressure v
alue w
as detected in the stopped
follo
w
er unit.
<In heating>
While the system is oper
ating in HEA
T mode
, outdoor
PMV of which opening deg
ree w
as 100 pulse or less f
or
a cer
tain time
.
Protectiv
e stop which gener
ates when the status that
suction temper
ature is o
ver the judgment standard
temper
ature contin
ued f
or 10 min
utes w
as repeated f
or
4 times or more
.
<TS err
or judgment standar
d temperature>
In cooling oper
ation:
60°C or higher
In heating oper
ation:
40°C or higher
Protectiv
e stop which gener
ates when the status that
while compressor is under lo
w frequency oper
ation, the
discharge
temper
ature TD1, TD2
or
TD3
detected
108°C
or more contin
uously f
or 10 min
utes w
as repeated f
or
4 times or more
.
Protectiv
e stop which gener
ates when the discharge
temper
ature (TD2) w
as o
ver 115°C w
as repeated f
or
4 times or more
.
Discharge temp
. (TD3) e
xceeded 115°C
.
When abnor
mal refr
iger
ating cycle data w
as detected in
heating
Pd sensor detected 3.6MP
a or more
.
Chec
k item (position)
•
Chec
k full close oper
ation of outdoor PMV (1, 2, 4).
•
Chec
k Pd and Ps sensor error
.
•
Chec
k clogging of SV2 circuit.
•
Chec
k clogging of balance pipe
.
•
Chec
k clogging of SV3B circuit.
•
Chec
k outdoor P
.C
. board (I/F) error
.
•
Chec
k capillar
y clogging of oil retur
n circuit from oil separ
ator
.
•
Chec
k leakage of stop v
alv
e in discharge assemb
ly par
t.
•
Chec
k refr
igerant shor
tage
.
•
Chec
k full open of outdoor ser
vice v
alv
es (gas side
, liquid side).
•
Chec
k outdoor PMV clogging (PMV1, 2).
•
Chec
k char
acter
istics of
TS1 sensor resistance v
alue
.
•
Chec
k 4-w
ay
v
alv
e error
.
•
Chec
k leakage of SV4 circuit.
•
Chec
k refr
igerant shor
tage
.
•
Chec
k outdoor PMV clogging (PMV1, 2).
•
Chec
k char
acter
istics of
TD1,
TD2 sensor resistance v
alue
.
•
Chec
k indoor air filter clogging.
•
Chec
k pipe clogging.
•
Chec
k SV4 circuit (V
alv
e leakage
, misinstallation)
•
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 char
acter
istics of
TD2 sensor resistance v
alue
.
•
Chec
k 4-w
ay
v
alv
e error
.
•
Chec
k leakage of SV4 circuit.
•
Chec
k SV4 circuit.
(Miscab
ling and misinstallation of SV41, SV42 and SV43)
•
Chec
k full opening of outdoor ser
vice v
alv
e (gas side
, liquid side).
•
Chec
k clogging of outdoor PMV (PMV1, 2, 4)
•
Chec
k char
acter
istics of
TD3 sensor resistance v
alue
.
•
Chec
k 4-w
ay
v
alv
e error
.
•
Chec
k leakage of SV4 circuit.
•
Chec
k SV4 circuit (Mis
wir
ing and mismounting of SV41, SV42, and SV43).
•
Error of 4-w
ay
v
al
ve error
.
•
Chec
k coil error and connector connection of 4-w
ay
v
alv
e.
•
Chec
k char
acter
istics of
TS1/TE1 sensor resistance v
alue
.
•
Chec
k char
acter
istics of Pd, Ps pressure sensor output v
oltage
.
•
Chec
k misconnection of
TE1 and
TL sensors
.
•
Chec
k Pd pressure sensor error
.
•
Chec
k full opening of 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, 4)
•
Chec
k clogging of indoor/outdoor heat e
xchangers
.
•
Chec
k air shor
t-circuiting in outdoor unit.
•
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 v
alv
e opening of indoor PMV
.
•
Chec
k miscab
ling of comm
unication line betw
een indoor and outdoor
.
•
Chec
k oper
ation error of stop v
alv
e in discharge assemb
ly par
t.
•
Chec
k circuit of gas balance SV4 v
alv
e.
•
Chec
k circuit of SV5 v
alv
e.
•
Chec
k refr
iger
ant o
vercharge
.
FILE NO. SVM-1
40
7
8
