- 245 -
Troubleshooting
8-2-77. Indoor unit EEV OPEN error
Indoor unit display
Outdoor unit display
Judgment method
Causes
1
st
detection : (Displayed only outdoor unit)
2
nd
detection : x x x (x x x : Indoor unit address occurred error)
(Operation)
(Timer)
(Fan)
(Filter)
(Removing frost)
- Refer to the below judge method
- Indoor unit EEV operation defect (The refrigerant leaks to the stopped indoor unit.)
1. Judge Method
1) Detected only in cooling mode.(Not detected in heating mode.)
2) The temperature of inlet or outlet of stop indoor heat exchanger maintains for more than 20 minutes below 0˚C
in cooling mode.
2. Check method
1) Check whether the EEV wire is connected correctly to the indoor unit PCB.
2) Check whether the EEV coil is inserted to the main body correctly.
3) After pressing the reset key(K3) of outdoor unit, check if the same error is occurred.
1)
●
If it is the CLOSE error, operate the corresponding indoor unit.
1)
●
If it is OPEN error, turn the power of corresponding indoor unit off to check.
4) If there is no trouble for the above checks, replace the EEV of the corresponding indoor unit.
1)
●
Since the replacement of EEV is the inconvenient work to collect the all refrigerant in the system, be sure to check the
above items before replacing EEV.
DB98-17816A(1)_8 3/2/04 9:35 AM Page 245
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