Daikin RXL-W Series Service Manual page 200

Check
FDMQ with Wired Remote Controller (BRC1E73)
FDMQ with Wireless Remote Controller (BRC082A43)
 Diagnose method (Diagnose according to 6 LEDs lighting status.)
1. If all the LEDs are lit uniformly, the compressor is defective.
2. If the LEDs are not lit uniformly, check the power module.
3. If NG in Check No.22, replace the power module.
4. If any solder cracking is found, replace the PCB or repair the soldered section.
Caution
1. When the output frequency is low, the LEDs blink slowly. As the output frequency increases, the
2. On completion of the inverter analyzer diagnosis, be sure to re-crimp the FASTON terminals.
195
1. Turn the power on.
2. Set FAN operation using the remote controller.
3. Press and hold Cancel button for 4 seconds or
longer.
4. Select Test Operation
menu, then press Menu/OK button.
Basic screen returns and "Test Operation"
is displayed at the bottom.
5. Press On/Off button within 10 seconds.
3 minutes after pressing On/Off button,
power transistor test operation will start.
• Test operation will stop automatically after
about 30 minutes.
To stop the operation, press On/Off button.
1. Turn the power on.
2. Press and select FAN operation.
3. Press twice. "TEST" is displayed.
4. Press within 10 seconds.
3 minutes after pressing
• Test operation will stop automatically after about 30 minutes.
To stop the operation, press
 Replace the compressor.
 Refer to Check No.22.
(Replace the main PCB. The power module (IPM1) is united with the main PCB.)
If OK in Check No.22, check if there is any solder cracking on the PCB.
If there is no solder cracking, replace the PCB.
LEDs blink quicker. (The LEDs look like they are lit.)
Otherwise, the terminals may be burned due to loosening.
in the service settings
, power transistor test operation will start.
.
Direction of crimp
FASTON terminal
SiUS092231E
Basic screen
2.
3.
Fan
Press and hold Cancel
button for 4 seconds or
longer during backlight lit.
Service Settings
menu screen
4.
Service Settings 1/3
Test Operation
Maintenance Contact
Field Settings
Press Menu/OK button.
Energy Saving Options
Prohibit Function
Min Setpoints Differential
Setting
5.
Fan
Press On/Off button
(within 10 seconds).
Test Operation
This size is shortened
by the crimp.
Part 6 Service Diagnosis
(R15292)