Fan Motor; Main Pcb - Daikin FTXJ-M Service Manual

ESIE16-02K | Part 2. Troubleshooting

2.4.2.4. Fan motor

Technical specification
The motor has a single connector for DC power and the rotation
counter feed back from the integrated pulse generator
(4 pulses/revolution).
Location
Piping diagram
See "FTXM20-25M9" on
page 118.
Check procedure
Mechanical check
PRELIMINARY ACTIONS
1. Switch off the Daikin unit via the user interface.
2. Switch off the Daikin unit with the field supplied circuit breaker.
3. Remove plate work when required (refer to
PROCEDURE
1. Check the state of the propeller, replace the propeller if damaged, deformed, cracked or broken (refer to
fan blade assembly" on page
2. Check the motor shaft bearing friction, only perform electrical check if motor runs with low shaft bearing friction. Replace fan
motor if friction is abnormal (refer to
Electrical check
PRELIMINARY ACTIONS
1. Switch off the Daikin unit via the user interface.
2. Switch off the Daikin unit with the field supplied circuit breaker.
3. Remove plate work when required (refer to
PROCEDURE
1. Check fuse on PCB, replace if blown, see table
W : R
ARNING
When reconnecting a connector to the PCB, do not apply force, as this may damage the connector or connector pins of
the PCB.
2. Check if fan motor connector is plugged into PCB.
3. Power the Daikin unit.
4. Check power supply, the measured voltage must be 198 - 240 VAC, if not replace main PCB (refer to
on page 85).

2.4.2.5. Main PCB

Not available yet.
31/05/21 | Version 1.1
RA R32 Split & multi split M-Series
Wiring diagram
See "FTXM20-35M9" on
page 104.
"Basic removal" on page
86).
"Replacing DC fan motor assembly" on page
"Basic removal" on page
"Component checklist" on page
F
ISK OF IRE
Description
The fan motor runs on a fixed speed to supply the required air flow
rate.
Switch box
See "Outdoor unit" on
page 129.
69).
80).
69).
129.
2.4. Component checklist
Component overview of unit
See "Outdoor unit" on page 128.
"Replacing propeller
"Replacing main PCB"
Page 57