Daikin RYN25DV3B ARY20DV2 Dokumentacja Strona 72

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SiBE01-829 Troubleshooting
Service Diagnosis 61
4.5.2 Room Temperature Thermistor
Remote
Controller
Display
C9
Method of
Malfunction
Detection
The temperatures detected by the room temperature thermistor is used to determine thermistor
error.
Malfunction
Decision
Conditions
When the room temperature thermistor input is more than 4.96 V or more, or 0.04 V or less
during compressor operation
.
(Reference)
Room temperature thermistor: 30
or less, or 490k
or more.
Supposed
Causes
Faulty thermistor
Faulty PCB
Troubleshooting
Check No.06
Refer to P.67
Caution
Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.
(R8505)
Check No. 06
Check the thermistor resistance
value.
YES
NO
Replace the thermistor.
(Replace the display PCB.)
Replace the indoor unit PCB.
Is it normal?
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