Daikin R-410A Service Manual page 203

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ESIEN05-04
Troubleshooting
Caution
Be sure to turn off power switch before connect or disconnect connector, or parts damage may be
occurred.
Part 3 – Troubleshooting
Check the connector
connection.
Is
it
connected
No
properly?
Yes
Check the thermistor
resistance.
Is
No
it normal?
Yes
Check the contact between
thermistor and PCB.
Is
the
No
contact OK?
Yes
C4: Indoor liquid pipe thermistor (R2T).
C5: Gaspipe thermistor (R3T)
C9: Air suction thermistor (R1T).
Replace outdoor
unit PCB.
Error Codes
Correct the
connection.
Replace the
thermistor.
Correct contact
1
3
4
5
3–41

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