Troubleshooting
SiUS091601E
87
Service Diagnosis
4.14 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
A 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
: The same value continues.
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
C
(seconds)
Outdoor temperature
-15°C(5°F)
or higher
Lower than
-15°C(5°F)
09 class
600
600
12 class
600
300
15 class
600
1400
Summary of Contents for FVXS09NVJU
Page 12: ...SiUS091601E 1 List of Functions Part 1 List of Functions 1 Functions 2 ...
Page 15: ...SiUS091601E Specifications 4 Part 2 Specifications 1 Specifications 5 ...
Page 65: ...SiUS091601E Remote Controller 54 Part 5 Remote Controller 1 FTX Series 55 2 FVXS Series 57 ...
Page 144: ...Revision History Month Year Version Revised contents 02 2016 SiUS091601E First edition ...
