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SiE12-411
Troubleshooting
Service Diagnosis
175
5.6
Thermistor or Related Abnormality (Indoor Unit)
Remote
Controller
Display
C4, C9
Method of
Malfunction
Detection
The temperatures detected by the thermistors are used to determine thermistor errors.
Malfunction
Decision
Conditions
When the thermistor input is more than 4.96 V or less than 0.04 V during compressor
operation
∗
.
∗
(reference)
When above about 212°C (less than 120 ohms) or below about -50°C (more than 1,860 kohms).
Note:
The values vary slightly in some models.
Supposed
Causes
"
Faulty connector connection
"
Faulty thermistor
"
Faulty PCB
Troubleshooting
Check No.6
Refer to P.207
C4
: Heat exchanger temperature thermistor
C9
: Room temperature thermistor
Check the connector connection.
YE
S
Correct the connection.
Repl
a
ce the thermi
s
tor.
(Repl
a
ce the indoor
u
nit PCB.)
Repl
a
ce the indoor
u
nit PCB.
I
s
it norm
a
l?
I
s
it norm
a
l?
(R140
3
)
NO
Check No. 6
Thermi
s
tor re
s
i
s
t
a
nce check
YE
S
NO
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.
Содержание Super Multi NX C-Series
Страница 1: ...SiE12 411 Service Manual C Series Applied Models Inverter Multi Cooling Only Inverter Multi Heat Pump...
Страница 6: ...SiE12 411 Table of Contents v Index i Drawings Flow Charts v...
Страница 7: ...SiE12 411 vi Table of Contents...
Страница 67: ...Specifications SiE12 411 56 Specifications...
Страница 129: ...Instruction SiE12 411 118 System Configuration CDK X D 25 35 50 60 C Indoor Unit 3 6 8 9 10 7 1 4 5 2...
Страница 171: ...Instruction SiE12 411 160 System Configuration...
Страница 225: ...Check SiE12 411 214 Service Diagnosis...
Страница 266: ...SiE12 411 Others 255 Part 8 Others 1 Others 256 1 1 Test Run from the Remote Controller 256 1 2 Jumper Settings 257...
Страница 295: ...SiE12 411 iv Index...