Samsung AM072BXV Series, Service Manual, Page: 109 / 326

Troubleshooting
Samsung Electronics 103
4-3-22 : Suction Temperature sensor breakaway error
1. Cause of problem
Replace the PBA
Is Suction sensor
and sensor Holder accurately
attached?
Is Suction sensor
resistance value reasonable?
(Refer to the “Note 1” )
Defective Sensor : Replace Sensor
No
Re-insert the sensor.
Re-attach the sensor holder.
No
Yes
Yes
NOTE1
Temperature(°C) Resistance(KΩ)
70
60
50
40
30
20
10
0
-10
2.2
3.0
4.2
5.8
8.3
12.1
18.0
27.3
43.0
Outdoor unit
display
Indoorunit
display
Duct, Cassette (1/2 Way),Console, Celing Cassette (4/Mini4 Way) Wall-mounted (NeoForte)
Operation Defrost Timer Fan Filter/MPI Operation Defrost Timer Filter Operation Timer Turbo
× × ◑ ◑ ◑ × ◑ ◑ ◑ ● ◑ ◑
※ ●
: ON
◑
: Flash ×: OFF
Judgment
Method
• Judgment Method : Difference of suction temperature of compressor starting verge and suction temperature that is on present
operation : If less than 2
℃
for 30 minutes to keep.(Judgment at heating operation only)
Cause of
problem
• Suction temperature sensor breakaway/defective.
4-3 Appropriate Measures for Different Symptom (cont.)