Daikin Stylish Series - Page 90

2 | Components
Service manual
90
(C)(F)TXA15~50A(W)(S)(T) + (C)(F)TXA15~50B(B)(S)(T) + RXA42+50A +
RXA20~35A + RXA42+50B
Split Stylish R32
ESIE18-03C – 2020.02
Prerequisite: Turn OFF the respective circuit breaker.
Prerequisite: Remove the required plate work, see "2.13Plate work"[499].
1 If propeller fan blade touches the bellmounth, check if the fan motor is
correctly mounted on its base, see "Repair procedures"[491].
2 Check the state of the propeller fan blade assembly for damage, deformations
and cracks.
Is the propeller fan blade assembly
damaged?
Action
Yes Replace the propeller fan blade
assembly, see "Repair
procedures"[491].
No Perform a mechanical check of the DC
fan motor assembly, see "Checking
procedures"[489].
To perform a mechanical check of the DC fan motor assembly
Prerequisite: First perform a mechanical check of the propeller fan blade
assembly, see "Checking procedures"[489].
1 Manually rotate the fan motor shaft. Check that it rotates smoothly.
2 Check the friction of the DC fan motor shaft bearing.
Is the DC fan motor shaft friction
normal?
Action
Yes Perform an electrical check of the DC
fan motor assembly, see "Checking
procedures"[489].
No Replace the DC fan motor assembly, see
"Repair procedures"[491].
To perform an electrical check of the DC fan motor assembly
1 First perform a mechanical check of the DC fan motor assembly, see "Checking
procedures"[489].
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 … Action
Rotates continuously (without
interruption)
DC fan motor assembly is OK. Return to
the troubleshooting of the specific error
and continue with the next procedure.
Does not rotate or rotates for a short
time
Continue with the next step.
5 Turn OFF the unit via the user interface.
6 Turn OFF the respective circuit breaker.
DANGER: RISK OF ELECTROCUTION
Wait for at least 10 minutes after the circuit breaker has been turned OFF, to be sure
the rectifier voltage is below 10VDC before proceeding.