SiENBE18-621
Troubleshooting for Outdoor Unit
Troubleshooting
333
7.24 Malfunction of Inverter Radiating Fin Temperature Rise
Sensor
Remote Control
Display
P4
Applicable
Models
AII outdoor unit models
Method of
Malfunction
Detection
Resistance of radiation fin thermistor is detected when the compressor is not operating.
Malfunction
Decision
Conditions
When the resistance value of thermistor becomes a value equivalent to open or short circuited
status.
H
Malfunction is not decided while the unit operation is continued.
"P4" will be displayed by pressing the inspection button.
Supposed
Causes
"
Defect of radiator fin temperature sensor
"
Defect of outdoor unit PC board (A1P)
Troubleshooting
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.
Power OFF
Power ON
Repl
a
ce the
compre
ss
or.
Repl
a
ce the o
u
tdoor
u
nit PC
b
o
a
rd (A1P).
End
YE
S
YE
S
NO
NO
Di
s
connect the c
ab
le from the
compre
ss
or,
a
nd then check
the compre
ss
or for the
in
su
l
a
tion re
s
i
s
t
a
nce.
Remove
a
nd in
s
ert the fin
thermi
s
tor connector [X111A].
The in
su
l
a
tion
re
s
i
s
t
a
nce i
s
low (i.e., not more th
a
n
100kW.)
T
u
rn
ON the power
su
pply,
a
nd then check whether or
not the m
a
lf
u
nction
rec
u
r
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...
