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Troubleshooting
SiEN04-306D
120
Service Diagnosis
4.11 Four Way Valve Abnormality
remote control
Display
EA
Method of
Malfunction
Detection
The room temperature thermistor, the indoor unit heat exchanger thermistor, the outdoor
temperature thermistor and the outdoor unit heat exchanger thermistor are checked to see if
they function within their normal ranges in the operating mode.
Malfunction
Decision
Conditions
A following condition continues over 1 minute after operating 10 minutes.
Cooling / dry operation
(room temp. – indoor heat exchanger temp.) < –10°C
Heating
(indoor unit heat exchanger temp. – room temp.) < –10°C
Supposed
Causes
Connector in poor contact
Thermistor defective
Outdoor unit PCB defective
Four way valve coil or harness defective
Four way valve defective
Foreign substance mixed in refrigerant
Insufficient gas
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 ...