Esc Eev Open Error (Error Code : E438) - Samsung AM036FXMDCH Service Manual

3-11 ESC EEV open error (Error Code : E438)

1. How to check
correctly connected to the PBA?
Is EEV coil correctly connected?
Check the leakage on ESC EEV
Check the leakage on sub-cooler
Check the piping connection
Check the amount of refrigerant
Samsung Electronics
Is the ESC EEV connector
Yes
Yes
Normal
Normal
Check the leakage on
indoor unit EEV
Normal
Connect liquid-gas pipe)
No
Check and connect the connector
No
Check and assemble the coil
Failure
Change the ESC EEV
Failure
Change the sub-cooler
Failure
Change the indoor unit EEV
Re-install the pipe
Troubleshooting
31