Troubleshooting
42 Samsung Electronics
3-11 ESC EEV open error (Error Code : E438)
1. How to check
Check the amount of refrigerant
No
Check and connect the connector
Is the ESC EEV connector
correctly connected to the PBA?
Yes
No
Check and assemble the coil
Is EEV coil correctly connected?
Yes
Failure
Change the sub-cooler
Check the leakage on sub-cooler
Normal
Check the leakage on
indoor unit EEV
Failure
Change the indoor unit EEV
Normal
Re-install the pipe
Check the piping connection
Connect liquid-gas pipe)
Failure
Change the ESC EEV
Check the leakage on ESC EEV
Normal
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