Repair Procedures - Daikin EBLA04E V Series Service Manual

Problem solved?

4.15.2 Repair procedures

To remove the propeller fan blade assembly
EBLA04~08E + EDLA04~08E
Daikin Altherma 3 M
ESIE22-09 – 2022.05
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 Set the Megger voltage to 500 V DC or 1000 V DC.
10 Measure the insulation resistance for the motor terminals. Measurements
between each phase and fan motor body (e.g. axle) MUST be >1000 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.
a Nut
b Propeller fan blade assembly
3 Pull and remove the propeller fan blade assembly from the DC fan motor
assembly.
Action
Perform a check of the main PCB, see
"4.14.1 Checking
Replace the DC fan motor, see
"4.15.2 Repair
Action
No further actions required.
Return to the troubleshooting of the
specific error and continue with the
next procedure.
"4.16 Plate work" [
a b
draft – 31/05/2022 15:53
4 | Components
4
procedures" [ 184].
4
procedures" [ 199].
4
202].
Service manual
199