Samsung AVXC1H022 series Service Manual page 296

I
( for 1
Outdoor unit display
Indoor unit display
Judgment method
Causes
1. Judgment Method
Detect only during cooling operation (Not detect during heating operation)
When the inlet or outlet temperature of the indoor heat exchanger on the stop side during cooling operation maintains for
over 20 minutes at below 0˚C.
2. Check Method
Check whether the EEV wire is connected to the indoor unit PCB correctly.
1)
Check whether the EEV coil is inserted into the body correctly.
2)
Check with the naked eye whether rust is generated on the outside of the EEV coil, the resistance between each
3)
terminal of coils, and the open and short on the coil inside.
After pressing the outdoor unit Reset Key (K3), check that same error is occurred.
4)
- In case close error, do not operate the indoor unit that the error is occurred.
- In case open error, do not operate the indoor unit that the error is occurred.
If no error is checked for the above check points, replace the relevant indoor unit EEV.
5)
- The replacement of EEV is inconvenient because it collects all refrigerant of the system; thus, before replacing it,
must check the above points.
Samsung Electronics
Detection) : Indoor Unit EEV Open Error
st
1 st detection :
2 nd detection:
(Operation)
Refer to the below judgment method
Indoor unit EEV moving defect (refrigerant is leaked to the stopped indoor unit)
(Display only outdoor unit)
↔ A*** (*** : Indoor unit address which an error is occurred)
(Timer) (Fan) (Filter)
Troubleshooting
(Defrost)
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