Samsung AQV12NSAX - Troubleshooting; Items to be checked first; Fault Diagnosis by Symptom; PCB Inspection Method

3-2
3-2 Indoor Display Error and Check Method
● : Lamp on, : Lamp off, ◑ : Lamp blink
Description
LAMP
Main Checking Point
OPERATION TIMER TURBO
Indoor unit room temperature sensor error
(open or short)
◑
3-2P
Indoor unit heat exchanger temperature sensor error
(open or short)
◑ ◑
3-3P
Indoor fan motor malfunction
◑
3-4P
EEPROM error
◑ ◑ ◑
Option Setting
Option error
(option wasn’t set up or option data error)
◑ ◑ ◑
Option Setting
Outdoor unit error
◑ ◑
Remote Control on/off
Outdoor Unit Power Reset
Samsung Electronics