Troubleshooting
SiUS071735EA
85
Service Diagnosis
4.19 Four Way Valve Abnormality
Error Code
EA
Method of Error
Detection
The room temperature thermistor and the indoor heat exchanger thermistor are checked if they
function within their normal ranges in each operation mode.
Error Decision
Conditions
The following condition continues over 10 minutes after operating for 5 minutes.
Cooling/Dry
A
–
B
< –5°C (
A
–
B
< –9°F)
Heating
B
–
A
< –5°C (
B
–
A
< –9°F)
A
: Room thermistor temperature
B
: Indoor heat exchanger temperature
If the error repeats, the system is shut down.
Reset condition: Continuous run for about 60 minutes without any other error
Supposed
Causes
Disconnection of four way valve coil
Defective four way valve, coil, or harness
Defective outdoor unit PCB
Defective thermistor
Refrigerant shortage
Water mixed in refrigerant
Defective stop valve
Содержание FDMQ09RVJU
Страница 12: ...SiUS071735EA 1 List of Functions Part 1 List of Functions 1 Functions 2 ...
Страница 14: ...SiUS071735EA 3 Specifications Part 2 Specifications 1 Specifications 4 ...
Страница 120: ...Check SiUS071735EA 109 Service Diagnosis 15 18 24 class R25105 1 2 3 4 Multimeter ...
Страница 122: ...Check SiUS071735EA 111 Service Diagnosis 15 18 24 class R20704 W V U DC_P1 DC_N1 ...
Страница 138: ...Piping Diagrams SiUS071735EA 127 Appendix 1 Piping Diagrams 1 1 Indoor Unit FDMQ09 12 15 18 24RVJU C 4D112974A ...
Страница 140: ...Piping Diagrams SiUS071735EA 129 Appendix RX24RMVJU A 3D092249A ...