Daikin Sky Air R-407C Service Manual page 282

Error Codes: Outdoor Units
1
Troubleshooting
3 3
4
5
3–52
To troubleshoot, proceed as follows:
Check the connector connection
temperature sensor (R2T) on
X5A on the outdoor unit PCB.
Check the unit
type.
of the heat exchanger
Is
it connected
No
properly?
Yes
Check the
thermistor
resistance.
Is it normal? No
Yes
Replace the
outdoor unit PCB
ESIE02–01
Correct the
connection.
Replace the
termistor.
Part 3 – Troubleshooting