Daikin Sky Air R-407C Service Manual page 276

Error Codes: Outdoor Units
1
Troubleshooting
3 3
4
5
Thermistor curve
3–46
To troubleshoot, proceed as follows:
Check the amount of
refrigerant.
Is it correct?
Yes
Check the
discharge pipe
sensor.
Has
the sensor come off
the discharge pipe
port?
Yes
Place the sensor correctly in
the discharge pipe port.
See page 3–74.
Fill with the proper amount
No
of refrigerant.
Ÿ
Check if the operating conditions of
the in- and outdoor unit are within the
range
Ÿ
check the refrigerant piping circuit for
clogging
Ÿ
No check the accuracy of the discharge
thermistor, refer to the thermistor
curve
Ÿ
check correct operation of the
expansion valve and the flow through
non-return valves (RYP71-125B7).
ESIE02–01
Part 3 – Troubleshooting