Troubleshooting
4-26 Samsung Electronics
4-4-17 Indoor unit • Outdoor unit protection control detection related error
Indoor unit display
(Internal defrosting protection control error)
(External overload protection control error)
(External DISCHARGE protection control error)
(External OLP protection control error)
Outdoor unit display
○
(YEL)
◎
(GRN)
●
(RED) - when E401/E404/E463
◎
(YEL)
○
(GRN)
●
(RED) - when E416
1. Cause of malfunction
1) Abnormal refrigerant pressure
2) Problematic pipes
3) Problematic service valve
2. Check procedure
1) Inspect refrigerant pressure
2) Inspect Indoor unit and Outdoor unit pipes
3) Inspect service valve
4-4-18 Self-diagnosis - EEV related error
Indoor unit display
(Self-diagnosis - opened EEV error)
Outdoor unit display
○
(YEL)
◎
(GRN)
●
(RED)
1. Cause of malfunction
1) When EEV connector is assembled improperly
2) Faulty EEV itself
2. Check procedure
1) Check connection condition of the EEV connector to the outdoor unit PBA
2) Check EEV itself