Samsung RT38 Service Manual page 37

TROUBLESHOOTING
4-1-2-2. Models with ROTARY S/W
1. When the unit is plugged in, it will diagnose all its components to check if there are any defect parts.
And when there is any defect part, the ERROR MODE DISPLAY LED LAMP will blink according to the LED
Blinking Frequency in the below table. And, at the end of each blinking cycle, there is a two-second
interval (Downtime).
2. When the unit is plugged in, it will also diagnose if there are any multiple parts or loads failures. If so, the
ERROR MODE DISPLAY LED LAMP will blink according to the LED Blinking Frequency in the below table.
And, at the end of each blinking cycle, there is a two-second interval (Downtime).
LED Blinking
ITEM
Frequency
F-DEF-SENSOR
EXT-SENSOR 3 times
F-Def-Error 5 times
R-SENSOR 6 times
Rotary Error 9 times
INVERTER COMP 10 times
F-FAN ERROR 11 times
Self-Diagnosis Error Description
No. Defect Item
1 F-DEF-SENSOR
2 EXT-SENSOR
3 F-Def-Error
4 R-SENSOR
5 Rotary Error
6 INVERTER COMP. ERROR
7 F-FAN ERROR
Defect Description
- OPEN Defect
Twice
- SHORT Defect
- OPEN Defect
- SHORT Defect
- When exceeding Maximum heating
time and stopping operation
- OPEN Defect
- SHORT Defect
- OPEN Defect
- SHORT Defect
- Upon COMP ERROR
- F-FAN Restriction ERROR occurs
LED Blinking
Frequency
Twice
3 times
5 times
6 times
9 times
10 times
11 times
- -50℃ or lower being detected
- +65℃ or higher being detected
- -50℃ or lower being detected
- +65℃ or higher being detected
- When COMP ERROR occurs
Defect Description
F-ROOM DEFROST SENSOR RELATED ERROR
EXT DEFROST SENSOR RELATED ERROR
F-DEF RELATED ERROR
R-SENSOR RELATED ERROR
ROTARY Switch ERROR
INVERTER COMP ERROR
F-FAN RELATED ERROR
42
Remarks