Troubleshooting
4-86
Samsung Electronics
4-4-60 EVI EEV Open error
1. Cause of problem
Outdoor unit display
Indoorunit display
-
Judgment Method
. DSH <10 °C, EVI Out-in <= 0°C & frequency> 65Hz 40 minutes maintaining
Cause of problem
. EVI EEV and Intercooler leakage, excessive refrigerant amount, Outdoor Check Valve inserted opposite.
. Indoor Unit EEV leakage, direct connection between Indoor Liquid Pipe and the Gas Pipe.
Check the refrigerant
No
Reconnect connector
Is EVI EEV connector accurately connected to PCB?
Yes
No
Reassemble coil
Is EEV coil accurately installed?
Yes
Breakdown
Replace Intercooler
Check the Intercooler leakage.
Normal
Check the Indoor Unit EEV leakage
Breakdown
Replace Indoor Unit EEV
Normal
Reinstall pipe
Check the connection for Indoor Unit Pipe
(Connect liquid pipe-gas pipe directly)
No
Replace EVI EEV
Check the EVI EEV leakage.
Yes
ఐ
Indoor EEV leakage can be easily checked during the operation of cooling operation and during the not-go-end blast operation.
(In case it is normal, the EVA In and Out temperatures for the blast may rise.)
ఐ
If cooling operation is operated for low temperature with excessive refrigerant amount, then the DSH may descend.
