Troubleshooting for Outdoor Unit
SiENBE18-621
316
Troubleshooting
7.7
Abnormal Discharge Pipe Temperature
Remote Control
Display
F3
Applicable
Models
AII outdoor unit models
Method of
Malfunction
Detection
Abnormality is detected according to the temperature detected by the discharge pipe
temperature sensor.
Malfunction
Decision
Conditions
When the discharge pipe temperature rises to an abnormally high level
When the discharge pipe temperature rises suddenly
Supposed
Causes
"
Faulty discharge pipe temperature sensor
"
Faulty connection of discharge pipe temperature sensor
"
Faulty outdoor unit PCB
Troubleshooting
∗
Refer to “Thermistor Resistance / Temperature Characteristics” table on P355.
(V
3
06
8
)
Caution
Be
su
re to t
u
rn off power
s
witch
b
efore connect or di
s
connect connector,
or p
a
rt
s
d
a
m
a
ge m
a
y
b
e occ
u
rred.
Di
s
ch
a
rge
pipe temper
a
t
u
re i
s
120°C or higher when the
u
nit
s
top
b
y
m
a
lf
u
nction.
P
u
ll o
u
t the di
s
ch
a
rge pipe
thermi
s
tor from the o
u
tdoor
PCB,
a
nd then m
a
ke
me
asu
rement of re
s
i
s
t
a
nce
us
ing
a
m
u
ltiple meter.
Are
the ch
a
r
a
cteri
s
tic
s
of the di
s
ch
a
rge pipe
thermi
s
tor norm
a
l?
(
3
.5
~
400KW)
*
Repl
a
ce o
u
tdoor
u
nit PC
b
o
a
rd
(A1P).
Repl
a
ce the di
s
ch
a
rge pipe
thermi
s
tor.
NO
NO
Refriger
a
nt
s
hort
a
ge, compre
ss
ion
defect, etc. Defect of the refriger
a
nt
s
y
s
tem.
YE
S
YE
S
Summary of Contents for BPMKS967B2B
Page 1: ...SiENBE18 621 E Series Service Manual Applied Models Super Multi Plus Heat Pump...
Page 12: ...SiENBE18 621 List of Functions 1 Part 1 List of Functions 1 List of Functions 2...
Page 19: ...List of Functions SiENBE18 621 8 List of Functions...
Page 33: ...Specifications SiENBE18 621 22 Specifications...
Page 69: ...Refrigerant Flow for Each Operation Mode SiENBE18 621 58 Refrigerant Circuit...
Page 121: ...Indoor Unit SkyAir Models SiENBE18 621 110 Function...
Page 169: ...Instruction SiENBE18 621 158 System Configuration FTXS 20 25 35C Indoor Unit...
Page 371: ...Method of Replacing The Inverter s Power Transistors Modules SiENBE18 621 360 Troubleshooting...
Page 393: ...SiENBE18 621 vi Index...