Samsung AM080KXMDFH/TC - Page 62

Troubleshooting
4-20 Samsung Electronics
■ Error on discharge temperature sensor of compressor 1 (Short or open). (E-251)
Outdoor unit Display E-251
Indoor unit Display
Duct, Cassette (1 / 2Way), Console, Ceiling
Operation Defrost Timer Fan Filter / MPI
× ×
◑ ◑
◑
Cassette (4Way / Mini 4Way)
Operation Defrost Timer Filter
×
◑
◑ ◑
Duct, Cassette (1/2 Way), Console, Ceiling
Operation Timer Turbo 24°C 27°C
× ×
◑ ◑
◑
※ ● : ON ◑ : Flash ×: OFF
Judgement Method •Referthenextpage
Cause of problem •CompressorDischargeorTopTemperaturesensordefective.(Open/Short)
Did the Compressor
Discharge or t op
temperature sensor
connector break away
from the PCB?
Restart operation after connecting the connector
to PCB
Yes
No
Did the resistance
value significantly stray
from the following
temperature table?
Replace this part as it is the defective of
the compressor discharge or top temperature
sensor itself.
No
Yes
Restart operation after replace the PCB
After separating the Compressor Discharge or
Top Temperature sensor connector from the PCB,
measure the resistance value between the two terminals.
Temperature(°C) Resistance(KΩ)
130 8.9
120 11.2
100 18.5
80 32.0
60 59.0
25 200
20 242
10 362
0 553