Daikin SkyAir RZR-P Series Service Manual page 163

SiUS281117
Troubleshooting
1: A (Electronic thermal detection value)
Note:
RZQ18,24 P(9)
RZQ30P
RZR18,24,30P
RZQ36,42P9
RZR36,48P
156
Be sure to turn off the power switch before connecting or disconnecting
Caution connectors, or parts may be damaged.
Output current check
The
secondary
current of the inverter
is higher than A (∗1) 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
L8
turning ON again, " "
blinks again.
YES
Model Mode
Cooling
Cooling
YES
YES
NO
NO
Detection value
A × seconds 14.8A × 260s or 17.0A × 5s
A × seconds 24.9A × 260s or 31.0A × 5s
Troubleshooting by Remote Controller
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.
Service Diagnosis