Samsung AVXCSH023/032/040CE, Service Manual

Page: 117 / 363

Troubleshooting
Troubleshooting
■
Error display (cont.)
Err
or mode
C
ause
Measur
es to tak
e
P
roduc
t’
s oper
a
tion c
ondition during err
or(Main par
ts sta
tus)
Diagnosis method
F
requenc
y
O
utdoor unit sta
tus
Err
or oc
curr
ed
indoor unit
.
O
ther indoor units
257
Fi
xed scr
oll c
ompr
essor 2 c
ompr
essor dischar
ge t
emp
. err
or (
Open/Shor
t)
• Err
or det
ec
tion c
ondition: out
door t
emp
. o
ver - 10 °
• Err
or lev
el: o
ver 4.95V (-30°), belo
w 0.5V (151°)
•
Check the c
onnec
tion par
t of fix
ed scr
oll c
ompr
essor 2’
s dischar
ge t
emp
. sensor cir
cuit and
an
y pr
oblem in the sensor
.
•
Check the wir
e br
eak
ing of the fix
ed scr
oll c
ompr
essor 2’
s dischar
ge t
emp
. sensor cir
cuit and
the c
onnec
tion status of the c
onnec
tor PCB
1
Operation off
Operation
off
Operation off
page 4-65
258
Fi
xed scr
oll c
ompr
essor 3 c
ompr
essor dischar
ge t
emp
. err
or (
Open/Shor
t)
• Err
or det
ec
tion c
ondition: out
door t
emp
. o
ver - 10 °
• err
or lev
el: o
ver 4.95V (-30°), belo
w 0.5V (151°)
•
Check the c
onnec
tion par
t of fix
ed scr
oll c
ompr
essor 3’
s dischar
ge t
emp
. sensor cir
cuit and
an
y pr
oblem in the sensor
.
•
Check the wir
e br
eak
ing of the fix
ed scr
oll c
ompr
essor 3’
s dischar
ge t
emp
. sensor cir
cuit and
the c
onnec
tion status of the c
onnec
tor PCB
1
Operation off
Operation
off
Operation off
page 4-65
261
Dig
ital c
ompr
essor dischar
ge t
emp
. S
ensor dislocation err
o
r
• Check if the dig
ital c
ompr
essor dischar
ge t
emp
. sensor is mount
ed in the right position
1
Operation
off
Operation off
Operation off
page 4-66
263
Fi
xed scroll compr
essor 2 discharge temp
. S
ensor dislocation
er
ror
•
Check if the fix
ed scr
oll c
ompr
essor 2’
s dischar
ge t
emp
. sensor is moun
ted in the r
igh
t position
1
Operation off
Operation
off
Operation off
page 4-66
264
Fi
xed scroll compr
essor 3 discharge temp
. S
ensor dislocation
er
ror
•
Check if the fix
ed scr
oll c
ompr
essor 3’
s dischar
ge t
emp
. sensor is moun
ted in the r
igh
t position
1
Operation off
Operation
off
Operation off
page 4-66
265
SUMP sensor dislocation
• Check if SUMP sensor location is mount
ed in
the right position
1
Operation
off
Operation off
Operation
off
page 4-67
269
SUC
TION sensor dislocation
• Check if SUC
TION sensor location is mount
ed in the right position
1
Oper
ation off
Operation off
Oper
ation off
page 4-68
271
SUMP_T
emp Dig
ital SENSOR ERROR (
Open/Shor
t)
• Err
or det
ec
tion c
ondition: out
door t
emp
. o
ver -10 °
• err
or lev
el: o
ver 4.95V (-30°), belo
w 0.5V (151°)
•
Check the c
onnec
tion par
t of SUMP_T
emp Dig
ital sensor cir
cuit and an
y pr
oblem in the
sensor
•
Check f
or disc
onnec
ted SUMP t
emperatur
e po
w
er line and the PCB c
onnec
tion
1
Operation off
Operation
off
Operation off
page 4-69
291
Det
e
ct
only high pr
essur
e SENSOR ERROR (
Open/Shor
t) c
ompr
essor
(shor
t err
o
r:
det
ec
t only belo
w 0.4V
) (
Open err
o
r:
det
ec
t only o
ver 4.2V
)
• Check the wir
e br
eak
ing of high pr
essur
e sensor
• Check the high pr
essur
e sensor cir
cuit and an
y pr
oblem in the sensor
1
Operation off
Operation
off
Operation off
page 4-70
296
Det
e
ct
only lo
w pr
essur
e SENSOR ERROR (
Open/Shor
t) c
ompr
essor
(shor
t err
o
r:
det
ec
t only belo
w 0.4V
) (
Open err
o
r:
det
ec
t only o
ver 4.2V
)
• Check the wir
e br
eak
ing of lo
w pr
essur
e sensor
• Check the lo
w pr
essur
e sensor cir
cuit and an
y pr
oblem in the sensor
1
Operation off
Operation
off
Operation off
page 4-70
307
Balanc
e keeping sensor c
onnec
tor dislocation
Balanc
e keeping sensor wir
e br
eak
ing
Def
e
ctiv
e balanc
e keeping sensor
• Check if balanc
e keeping sensor wir
e is br
oken
• Check the balanc
e keeping sensor c
onnec
tion cir
cuit and an
y pr
oblem with sensor
1
Operation off
Operation
off
Operation off
page 4-71
308
Suc
tion t
emp
. sensor c
onnec
tor dislocation
Suc
tion t
emp
. sensor wir
e br
eak
ing
Def
e
ctiv
e suc
tion t
emp
. sensor
• Check if a suc
tion sensor wir
e is br
oken
• Check the suc
tion sensor c
onnec
tion cir
cuit and an
y pr
oblem with sensor
1
Operation off
Operation
off
Operation off
page 4-72
311
Liquid pipe t
emp
. sensor c
onnec
tor dislocation
Liquid pipe t
emp
. sensor wir
e br
eak
ing
Def
e
ctiv
e liquid pipe t
emp
. sensor
• Check if a liquid pipe t
emp
. sensor wir
e is br
oken
• Check the liquid pipe t
emp
. sensor c
onnec
tion cir
cuit and an
y pr
oblem with sensor
1
Operation off
Operation
off
Operation off
page 4-73
4-33
Samsung Electronics