Rxa20~35A2 + Class 42~50 Units - Daikin FTXA20A Service Manual

2.13.2 RXA20~35A2 + class 42~50 units

Checking procedures
To perform a mechanical check of the propeller fan blade assembly
To perform a mechanical check of the DC fan motor assembly
FTXA20~50A(W)(S)(T) + FTXA20~50B(B)(S)(T) + RXA42+50A +
RXA20~35A(9) + RXA42+50B
Split Stylish R32
ESIE18-03D – 2021.05
a Nut
b Propeller fan blade assembly
Is the problem solved?
Yes
No
INFORMATION
It is recommended to perform the checks in the listed order.
Prerequisite: Stop the unit operation via the user interface.
Prerequisite: Turn OFF the respective circuit breaker.
Prerequisite: Remove the required plate work, see
1 If propeller fan blade touches the bellmounth, check if the fan motor is
correctly mounted on its base, see
2 Check the state of the propeller fan blade assembly for damage, deformations
and cracks.
Is the propeller fan blade assembly
damaged?
Yes
No
Prerequisite: First perform a mechanical check of the propeller fan blade
assembly, see "Checking
1 Visually check:
▪ For any burnt‑out part or wire. If found, replace the fan motor, see
4
procedures" [ 118].
▪ 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
Action
No further actions required.
Return to
procedures" [
fan motor and continue with the next
procedure.
"Repair procedures" [
Action
Replace the propeller fan blade
assembly, see
procedures" [
Perform a mechanical check of the DC
fan motor assembly, see
procedures" [
4
procedures" [ 115].
Action
Perform an electrical check of the DC
fan motor assembly, see
procedures" [
2 Components
|
"Checking
4
111] of the outdoor unit
4
"2.14 Plate work" [ 120].
4
118].
"Repair
4
118].
"Checking
4 115].
"Checking
4
115].
Service manual
"Repair
115