Daikin RWEYQ26PY1 [211/342] Troubleshooting

Daikin RWEYQ30PY1 [211/342] Troubleshooting
Troubleshooting by Indication on the Remote Controller Si30-813
200 Troubleshooting
Troubleshooting
YES
NO
NO
YES
YES
NO
Caution
Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.
Is the
UVWN wire connection
proper?
Is it a
high differential
pressure at the time of
start-up (0.5 MPa or
more) ?
(1)
Restart operation after
resetting operation.
Disconnect the connection
between the compressor and
the inverter and turn on power
transistor check mode setting
using “Setting Mode 2” on the
outside unit PC board.
Measure inverter output
voltage.
Note: Take measurements
while frequency is stable.
Eliminate the causes.
The hot gas bypass valve
may not be opened.
Check it.
NO
YES
The inverter
compressor operates
normally.
Replace the compressor.
NO
Replace the inverter PC board.
YES
Replace the inverter compressor.
Open the stop valve.
1 : Difference in pressure between high and low pressures before start-up
2 : The quality of the power transistor diode module can be assessed also by means of
measurement of resistance between terminals (page 312, 313).
Is the stop
valve opened?
Connect properly.
Inverter
output voltage
among 3 phases is
within ±5V for TL power supply
and ±10V for
Y1, YL power
supply.

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