Daewoo FR-660N/NT Service Manual page 44

3) Self-diagnosis table
Error
mode
F 1 F-sensor
R 1 R1-sensor
R 2 R2-sensor
D 1 D-sensor
RT RT-sensor
D 0 Door switch
C 1 Cooling cycle
(check after first
defrost mode)
F 3 Heater
If both R1 and R2-sensor are out of order, then RT-sensor control R-fan.
- Room temperature ≤ 14˚C : R-fan is off
- Room temperature ≥ 26˚C : R-fan is on for 15 minutes, R-fan is off for 5 minutes
- 14˚C < Room temperature < 26˚C : R-fan is on for 2 minutes, R-fan is off for 18 minutes
Defect function
- Compressor & F-fan is on for 24 minutes.
- Compressor & F-fan is off for 16 minutes.
- Regarded by R2-sensor.
- Detecting weak cooling is impossible.
- Heater is on only for 35 minutes.
- Natural defrost for 80 minutes.
42
Check method