Samsung AM280KXVAGH/EU - Compressor Discharge or TOP Temperature Sensor Breakway Error

Troubleshooting
Samsung Electronics 4-39
4-3-21 Compressor Discharge or Top temperature sensor breakaway error
1.
Cause of problem
Re-insert sensor Re-attach sensor holder
No
Yes
Is the Discharge or Top temperature sensor and the
sensor holder correctly attached?
Defective sensor : Replace sensor
No
Yes
Is the Discharge or Top temperature
sensor resistance value reasonable?
(Refer to the “Note 1”)
NOTE1
TOP1 : CN43 (3, 4)
TOP2 : CN45 (5, 6)
DIS1 : CN43 (1, 2)
DIS2 : CN45 (3, 4)
Resistance value
measure part
Resistance value
measure part
TOP1 TOP2
Temperature(°C)Resistance(K)
130
120
100
80
60
25
20
10
0
8.9
11.2
18.5
32.0
59.0
200.0
242.0
362.0
553.0
Replace the PCB
Outdoor unit
display
(Compressor 1 Discharge) (Compr essor 2 Discharge)
(Compressor 1 Top) (Compressor 2 Top)
Indoorunit
display
Duct, Cassette (1/2 Way),Console, Celing Cassette (4/Mini4 Way) Wall-mounted (NeoF orte)
Operation Defrost Timer F an F ilter/MPI Operation Defrost Timer Filter Operation Timer Turbo
24℃ 27℃
××◑◑◑ × ◑◑◑××◑◑◑
※ ●: ON ◑: Flash ×: OFF
Judgment
Method
1) Faulty compressor frequency of 60Hz or higher.
2) Suction temperature > Low pressure saturation temperature +10 ℃
3) Relevant discharge or Top temperature < High pressure saturation temperature
4) In case of keep 30 minutes in state that satisfy all above conditions (1,2&3) for 30min.
Cause of
problem
 Compressor discharge or Top temperature sensor breakaway and defective / Ineffective start of compressor