Temperature Display Area - Samsung AF28FVSDA N Series Service Manual

Troubleshooting
4-4-5 When indoor pipe sensor error code is "

temperature display area

1. Cause of malfunction
1) Disconnected or loosely connected indoor pipe 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 pipe sensor
by itself, is the reading 10kΩ at room
temperature of 25°C?
Turn on the main power switch.
After assembling the pipe 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
4-14
Yes
Yes
Yes
" indicated on the indoor
,
No
Replace faulty pipe sensor itselfted
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 pipe sensor itself
<Measure voltage>
<Measure voltage>
Samsung Electronics