Daikin R71FUV1 Service Manual page 46

Symptom-based Troubleshooting
Troubleshooting
Caution
Turn the operation switch
ON and OFF, then wait at
ON side.
Does
the unit start
operation after 3
minutes?
NO
Is the
discharge side
of compressor hot after
the unit stops?
YES
Check on the cause why
overcurrent relay (for
compressor) or
compressor protection
thermostat acted.
[Electric system]
Power
supply voltage
is within ±10 % of
specified
voltage.
YES
Is the
size of power
cable through total
length correct?
YES
[Refrigerant circuit]
After vacuum drying,
charge correct amount of
refrigerant. Then, start
operation again.
A
Be sure to turn off the power switch before
connecting or disconnecting connectors, or parts
may be damaged.
YES
NO Not so hot
NO
NO
Si20-701_B
Normal. Unit is in
3-min. standby
mode.
Check the
compressor.
Contact the
power company.
Replace the
power cable.
39