Troubleshooting
Samsung Electronics 4-45
4-3-33 EVI EEV Open error
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.
1.
Cause of problem
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
※ Indoor Unit EEV leakage confirmation(In case it is normal, the EVA In and Out temperatures for the blast may rise.)
ㆍ Operate cooling in one room any of the selected indoor unit. (Remainder Indoor Unit can confirm simply at the blast operation.)
ㆍ In case it is normal, the EVA IN/OUT temperature of indoor unit that is on blast operation within 5 minutes is ascending to value that approaching
in indoor temperature.
( ※ Setting as opposed to the indoor unit blast operation and cooling operation functions of the indoor unit, and then check again.)
※ If cooling operation is operated for low temperature with excessive refrigerant amount, then the DSH may descend.
Duct, Cassette (1/2 Way),Console, Celing Cassette (4/Mini4 Way) Wall-mounted (NeoForte)
Operation
Defrost Timer Fan Filter/MPI
Operation
Defrost Timer Filter
Operation
Timer Turbo
24℃ 27℃
× × ◑ ◑ ◑ × ◑ ◑ ◑ × × ◑ ◑ ◑
※ ● : ON ◑ : Flash × : OFF
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