Daikin EBLA04E V Series Service Manual page 198

4 | Components
To perform a mechanical check of the DC fan motor assembly
To perform an electrical check of the DC fan motor assembly
Service manual
198
draft – 31/05/2022 15:53
Prerequisite: First perform a mechanical check of the propeller fan blade
assembly, see "4.15.1 Checking
1 Visually check:
▪ For any burnt‑out part or wire. If found, replace the fan motor, see
"4.15.2 Repair procedures" [
▪ That fan motor fixation bolts are correctly installed and fixed. Correct as
needed.
2 Manually rotate the fan motor shaft. Check that it rotates smoothly.
3 Check the friction of the DC fan motor shaft bearing.
Is the DC fan motor shaft friction
normal?
Yes
No
1 First perform a mechanical check of the DC fan motor assembly, see
"4.15.1 Checking procedures" [
INFORMATION
Check the DC fan motor power supply (voltage) circuit on the PCB.
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.
DANGER: RISK OF ELECTROCUTION
Confirm the rectifier voltage is below 10 V DC before proceeding, see
electrical hazards" [
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 1-3, 1-5, and 3-5 of the DC fan motor connector.
Result: All measurements MUST be 25.93~28.67 Ω.
4
procedures" [ 197].
4 199].
Action
Perform an electrical check of the DC
fan motor assembly, see
"4.15.1 Checking
Replace the DC fan motor assembly, see
"4.15.2 Repair
4
197].
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.
4
254].
4
procedures" [ 197].
4
procedures" [ 199].
"To prevent
EBLA04~08E + EDLA04~08E
Daikin Altherma 3 M
ESIE22-09 – 2022.05