SiEN04-306D
Troubleshooting
Service Diagnosis
113
4.5
Thermistor or Related Abnormality (Indoor Unit)
remote control
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.141
C4
: Indoor heat exchanger thermistor
C9
: Room temperature thermistor
Check the connector connection.
YES
Correct the connection.
Replace the thermistor.
(Replace the indoor unit PCB.)
Replace the indoor unit PCB.
Is it normal?
Is it normal?
(R1403)
NO
Check No. 6
Thermistor resistance check
YES
NO
Caution
Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.
Содержание ARXS50C2VMB
Страница 109: ...Instruction SiEN04 306D 100 System Configuration ...
Страница 199: ...Outdoor Unit SiEN04 306D 190 Removal Procedure ...
Страница 200: ...SiEN04 306D Others 191 Part 8 Others 1 Others 192 1 1 Test Run from the remote control 192 1 2 Jumper Settings 193 ...
Страница 203: ...Others SiEN04 306D 194 Others ...
Страница 214: ...SiEN04 306D Wiring Diagrams Appendix 205 FTKD18 24 28BVMS ...
Страница 216: ...SiEN04 306D Wiring Diagrams Appendix 207 RKD18 24 28BVMS ...
Страница 217: ...Wiring Diagrams SiEN04 306D 208 Appendix ...