Indoor Unit Fan Motor; Checking Procedures; Repair Procedures - Daikin Stylish Series Service Manual

WARNING
When reconnecting a connector to the PCB, do NOT apply
force, as this may damage the connector or connector pins
of the PCB.
Is the problem solved? Action
Yes No further actions required.
No Return to the troubleshooting of
the specific error and continue
with the next procedure.
2.7

Indoor unit fan motor

2.7.1

Checking procedures

INFORMATION
It is recommended to perform the checks in the listed
order.
To perform a mechanical check of the DC fan
motor assembly
1 Check the friction of the DC fan motor shaft bearing.
Is the DC fan motor shaft Action
friction normal?
Yes Perform an electrical check of the
DC fan motor assembly, see
"2.7.1 Checking procedures" on
page 29.
No Replace the DC fan motor
assembly, see
procedures" on
To perform an electrical check of the DC fan motor
assembly
1 First perform a mechanical check of the DC fan motor
assembly, see "2.7.1 Checking procedures" on
2 Measure the resistance between the pins 1-2, 1-3, and 2-3 of
the DC fan motor connector. All measurements MUST be
15~20 Ω.
DC fan motor resistance Action
measurements are correct?
Yes Return to the troubleshooting of
the specific error and continue
with the next procedure.
No Replace the DC fan motor, see
"2.7.2 Repair procedures" on
page 29.
2.7.2

Repair procedures

To remove the DC fan motor assembly
Prerequisite: Turn OFF the unit via the user interface.
Prerequisite: Turn OFF the respective circuit breaker.
Prerequisite: Remove the required plate work, see
work" on page 40.
1 Pull the clip and remove the heat exchanger thermistor from its
holder.
2 Remove the screw and remove the cover.
3 Remove the screw to disconnect the grounding wire from the
heat exchanger
(C)(F)TXA15~50A2V1B(W)(S)(T) + RXA42+50A2V1B +
RXA20~35A2V1B
Split Stylish R32
ESIE18-03 – 2018.09
4 Disconnect the connectors of the indoor unit fan motor and the
front wiring from the indoor unit PCB
5 Remove the screw and remove the switch box from the indoor
unit.
6 Click the indoor unit fan motor cover out of the indoor unit.
"2.7.2 Repair
page 29.
page 29.
7 Remove the rubber from the indoor unit.
8 Remove the indoor unit fan motor from the indoor unit.
9 To install the indoor unit fan motor, see
procedures" on
"2.13 Plate
To install the DC fan motor assembly
1 Install the indoor unit fan motor in its correct location on the fan.
2 Install the rubber in front of the fan motor.
3 Click the indoor unit fan motor cover on the indoor unit.
2 Components
c
b a e
a Grouding wire cover screw
b Grounding wire screw
c Heat exchanger thermistor
d Indoor unit PCB
e Switch box screw
f Switch box
a
a Indoor unit fan motor cover
page 29.
f
d
"2.7.2 Repair
Service manual
29