Daikin SkyAir RZQ-P Series Service Manual page 139

SiUS28-902_B
Troubleshooting
Service Diagnosis
Be sure to turn off the power switch before connecting or disconnecting
Caution the connector or parts may be damaged.
Output current check
The
secondary
current of the inverter is
higher than 14.8A, 260sec.
for each phase.
NO
Compressor
inspection. The
compressor's coil is
disconnected.
NO
Disconnect the connection
between the compressor and
inverter. Make the power
transistor check mode setting
ON by service mode.
Inverter
output voltage
check. Inverter
output voltage is not
balanced (Normal if within
±5V). Must be
measured when
frequency is
stable.
YES
After turning
L8
ON again, " " blinks
again.
YES
Troubleshooting by Indication on the Remote Controller
YES
YES
NO
NO
Compressor overload.
Inspection of the compressor and
refrigerant system is required.
Replace the compressor.
Replace the outdoor unit PCB
(A1P).
Reset and restart.
Compressor inspection.
Inspect according to the diagnosis
procedure for odd noises, vibration
and operating status of the
compressor.
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