Troubleshooting
Samsung Electronics
107
4-3-26
Liquid Pipe Temperature sensor error (Open/Short)
1. Cause of problem
No
No
Resistance value measure part
Yes
Yes
Liquid pipe
temperature sensor connector (CN45)
connected to PBA?
Separate the connector of the Liquid Pipe
Temperature sensor from the PBA and measure
the resistance value between the 2 terminals.
Is the resistor value matching with
“NOTE1” table?
Restart operation after replace the PBA.
Replace this part as it is the defective of
the Liquid Pipe Temperature sensor itself.
Restart operation after connecting
the connector to PBA
CN45 (1, 2)
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
•
Detect according to temperature detected with the liquid pipe temperature thermistor
Cause of
problem
•
Liquid pipe temperature sensor is defective. (open/short)
4-3 Appropriate Measures for Different Symptom (cont.)
LIQUID
LIQUID
