LG ACHH Series Manual page 101

Sub cooling EEV
Check start
When operating cooling,
is there a temperature difference of the front
and the rear of Sub cooling EEV?
(In case of EEV open)
Yes
When operating
heating, is there a clear
temperature difference of the front and
the rear of over cooling EEV? (In case of EEV
open after securing a discharge
over heating temperature)
Yes
No problem EEV over cooling
No
Is PCB terminal connection normal?
Yes
Is a signal normally permitted from PCB?
Yes
EEV coil check and Sub cooling EEV
replacement
No
Is PCB terminal connection normal?
Yes
Is a signal normally permitted from PCB?
Yes
EEV coil check and Sub cooling EEV
replacement
- 101 -
Error code check
No
Terminal
reconnection
No
PCB replacement
No Terminal
reconnection
No
PCB replacement