When Indoor Temperature Sensor Error Code Is " " Indicated On The Indoor; Temperature Display Area - Samsung AF28FVSDA N Series Service Manual

4-4-4 When indoor temperature sensor error code is "

temperature display area

1. Cause of malfunction
1) Disconnected or loosely connected indoor temperature sensor
2) Cold soldering joint of indoor Main PBA MICOM
3) Faulty sensor itself (penetration of moisture into sensor)
2. Check procedure
Turn off the main power switch.
When measuring the
Resistance of both ends of the temperature
sensor by itself, is the reading 10kω at room
Temperature of 25°C?
Turn on the main power switch.
After assembling
The temperature sensor on the PBA,
Is the voltage of both ends between
DC1V~DC4V?
Is the sensor wire disconnected
or loosely connected?
Replace the Main PBA if the same problem
occurs even after re-soldering the micom
pin due to the faulty Main PBA
Samsung Electronics
Yes
Yes
Yes
" indicated on the indoor
No
Replace faulty temperature sensor itself
Replace the Main PBA if the same
No
problem occurs even after re-soldering
the micom pin due to the faulty Main PBA
No
Replace faulty temperature sensor itself
Troubleshooting
<Measure voltage>
<Measure voltage>
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