Repair Procedures - Daikin Sky Air Advance RZA200D7Y1B Service Manual

3 | Components
Problem solved?

3.11.2 Repair procedures

To remove the propeller fan blade assembly
Service manual
108
2 Turn ON the power of the unit.
3 Activate Cooling or Heating operation via the user interface.
4 Check the functioning of the outdoor unit fan.
Outdoor unit fan ...
Rotates continuously (without
interruption)
Does not rotate or rotates for a short
time
5 Turn OFF the unit via the user interface.
6 Turn OFF the respective circuit breaker.
7 Check that the DC fan motor connector is properly connected to the PCB.
8 Unplug the DC fan motor connector and measure the resistance between the
pins 1-2, 1-3, and 2-3 of the DC fan motor connector.
Result: All measurements MUST be 7.6 Ω±10% at 20°C.
INFORMATION
Winding resistance values above are given for reference. You should NOT be reading
a value in kΩ or a short‑circuit. Make sure that the propeller fan blade does NOT
rotate, as this could affect resistance measurements.
9 Measure the insulation resistance for the motor terminals. Measurements
between each phase and ground must be >1°MΩ.
Are the measured resistance values
correct?
Yes
No
After all checking procedures listed above have been performed:
Is the problem solved?
Yes
No
Prerequisite: Stop the unit operation via the user interface.
Prerequisite: Turn OFF the respective circuit breaker.
1 Remove the required plate work, see
2 Remove the nut that fixes the propeller fan blade assembly.
Action
DC fan motor assembly is OK. Return to
the troubleshooting of the specific error
and continue with the next procedure.
Continue with the next step.
Action
Perform a check of the main PCB, see
"3.9.1 Checking procedures" [
Replace the DC fan motor, see
"3.11.2 Repair procedures" [
Action
No further actions required.
Return to the troubleshooting of the
specific error and continue with the
next procedure.
4
"3.12 Plate work" [ 111].
4 95].
4
108].
RZA200+250D7Y1B
Sky Air Advance-series
ESIE19-13A – 2020.05