Top Temperature Sensor Breakaway Error - Samsung AM072BXV Series Service Manual

Troubleshooting
4-3 Appropriate Measures for Different Symptom (cont.)
4-3-21 /
away error
Outdoor unit
display
Duct, Cassette (1/2 Way),Console, Celing
Operation Defrost Timer Fan
Indoorunit
display
×
※ ● : ON ◑ : Flash ×: OFF
1) Faulty compressor frequency of 60Hz or higher.
2) Suction temperature > Low pressure saturation temperature +10 ℃
Judgment
Method
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
• Compressor discharge or Top temperature sensor breakaway and defective / Ineffective start of compressor
problem
1. Cause of problem
Is the Discharge or Top temperature sensor and the
sensor holder correctly attached?
Is the Discharge or Top temperature
sensor resistance value reasonable?
(Refer to the "Note 1")
Replace the PBA
Samsung Electronics
/ / Compressor Discharge or Top temperature sensor break-
(Compressor 1 Discharge)
(Compressor 1 Top)
Filter/
Operation Defrost Timer Filter Operation Timer Turbo 24℃
MPI
× ◑ ◑ ◑
Yes
Yes
Resistance value
measure part
TOP1 CN43(3,4)
TOP2 CN45(5,6)
DIS1 CN43(1,2)
DIS2 CN45(3,4)
(Compressor 2 Discharge)
(Compressor 2 Top)
Cassette (4/Mini4 Way)
× ◑ ◑ ◑
No
Re-insert sensor Re-attach sensor holder
No
Defective sensor : Replace sensor
NOTE1
Resistance value
measure part
TOP1 TOP2
Wall-mounted (NeoForte)
× × ◑
Temperature(°C) Resistance(KΩ)
130 8.9
120 11.2
100 18.5
80 32.0
60 59.0
25 200.0
20 242.0
10 362.0
0 553.0
27℃
◑ ◑
102