Liquid Pipe Temperature Sensor Error (Open/Short) - Samsung AM080xXV Series Service Manual

Troubleshooting

4-3-26 Liquid Pipe Temperature sensor error (Open/Short)

Outdoor unit
display
Duct, Cassette (1/2 Way),Console, Celing
Operation Defrost
Indoorunit
×
display
※ ●: ON ◑: Flash ×: OFF
Judgment
∙ Refer to the judgment method below.
Method
Cause of
∙ Disconnection or breakdown of relevant sensor. (More than 4.5V or 0.5V less than)
problem
1. Cause of problem
temperature sensor connector (CN45)
connected to PCB?
Separate the connector of the Liquid Pipe
Temperature sensor from the PCB and measure
the resistance value between the 2 terminals.
Is the resistor value matching with
Restart operation after replace the PCB.
4-48
Timer Fan Filter/MPI Operation Defrost
× ◑ ◑
Liquid pipe
Yes
"NOTE1" table?
Yes
Cassette (4/Mini4 Way)
◑ × ◑
No
Restart operation after connecting
the connector to PCB
Resistance value measure part
LIQUID
CN45 (1, 2)
No
Replace this part as it is the defective of
the Liquid Pipe Temperature sensor itself.
Wall-mounted (NeoForte)
Timer Filter Operation
◑ ◑ ●
NOTE1
Temperature(°C) Resistance(KΩ)
70 2.2
60 3.0
50 4.2
40 5.8
30 8.3
20 12.1
10 18.0
0 27.3
-10 43.0
Samsung Electronics
Timer Turbo
◑ ◑
LIQUID