Indoor Unit Evap In Sensor Error (Open/Short) - Samsung AM032MNQDCH/AA Service Manual

Troubleshooting

4-4-4 Indoor unit EVAP IN sensor Error (Open/Short)

Outdoor unit display
◑ (Operation)
Indoor unit display
Criteria • Refer to how to determine below
Cause of problem • The EVAP IN sensor of No. XXX indoor unit has defective OPEN/SHORT
1. How to check
Is indoor EVAP IN sensor
connector separated from the PCB?
After separating indoor EVAP IN sensor
connector from the PCB, measure the resistance
values between both terminals
At that time,
is the resistance value significantly
deviated from the temp. table?
Re-start after replacing PCB.
4-48
x x x ( x x x : The address of the error occurred indoor unit)
◑ (Timer)
×(Fan) ×(Filter)
Yes
Ex) Room temp. 26°C – Resistance 10.93KΩ
Yes
As it is due to an indoor EVAP IN sensor
Yes
×(Defrost)
No
Re-start after connecting
the connector to the PCB.
Temperature
No
defect, replace it.
Resistance
(°C) (KΩ)
70 2.2
60 3.0
50 4.2
40 5.8
30 8.3
21 12.1
10 18.0
0
27.3
-10
43.0
Samsung Electronics