Daikin RZQ100B8V3B Service Manual page 214

Error Codes: Outdoor Units
1
Troubleshooting
3 3
4
5
Caution
3–66
Check the installation
conditions.
Is the
stop valve
open?
YES
Is the
UVWN wiring
normal?
YES
Is high
pressure higher
than 2.6 MPa
at starting?
NO
Check
and see
whether compressor is
short-circuited or
ground.
NO
Are
inverter output
voltages the same for
3 phases?
YES
Does low or
high pressure vary
even instantaneously
when restarting
compressor?
NO
Be sure to turn off power switch before connect or disconnect connector, or parts damage may be
occurred.
NO
Open the stop valve.
NO
Connect correctly.
YES
Remedy the cause.
YES
Replace the compressor.
NO
Replace the inverter PC board.
YES
Replace the compressor.
ESIE05-03
Part 3 – Troubleshooting