Daikin Cooling-Only Outdoor Unit RKN24KEVJU

Warning: This procedure requires trained personnel with PPE!

Enter the power supply waveform measurement between No. 1 and No. 2 on the terminal board

Is the power supply waveform a sine wave?

Is there waveform disturbance near the zero cross?

Sign off on the power supply waveforms check

Warning Be sure to wait for 10 minutes or more after turning off all power supplies before disassembling work.

1. Remove the horizontal blades.

2 Bend the horizontal blade slightly and release the center shaft. (2 locations)

Remove both the horizontal blades (upper and lower) in the same way.

4 Slide the horizontal blade to the left and release the right shaft.

1. Since the key pattern hook is provided, rotate the blade and fit it to the right shaft first.

Warning Be sure to wait for 10 minutes or more after turning off all power supplies before disassembling work.

Remove the front grille according to the “Removal of Front Grille”.

1 Remove the screw and remove the drip proof plate.

3 Pull out the indoor heat exchanger thermistor.

4 Remove the screw of the ground.

5 Remove the screws of the connection wires.

1. Check the connection of connector.

2. Check the motor power supply voltage output (pins 4 - 7).

3. Check the motor control voltage (pins 4 - 3).

4. Check the rotation command voltage (pins 4 - 2).

5. Check the rotation pulse (pins 4 - 1).

Fan motor wire breakdown / short circuit check

1. Check the connector for connection.

Warning Be sure to wait for 10 minutes or more after turning off all power supplies before disassembling work.

Remove the front panel according to "Removal of the Air Filters / Front Panel".

You can remove the front grille without detaching the service cover.

1 Remove the screw and remove the service cover.

1 Remove the 3 screws of the front grille.

Refer to the removal procedure in a reverse way when reassembling.