Daikin Outdoor Heat Pump RXN18KEVJU

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

Enter the play between the side face of the rotor and the bottom frame in mm

Fan motor and the fan rotor reassembled correctly

Sign off on the fan motor / fan rotor removal

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

Warning: Dangerous: High voltage

A high voltage is applied to all the electric circuits of this product including thermistors.

When the signal receiver catches a signal from the remote controller, the receiving tone sounds and the operation lamp blinks immediately to confirm the signal reception.

When the ON/OFF button is kept pressed for 5 seconds, the forced cooling operation is performed for about 15 minutes.

1 Open the front panel to the position where it stops.

2 Slightly push up the center knob of the air filter and unfasten the hooks.

3 Pull out the air filter downward and remove it.

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: Ensure the voltage between (+) and (-) of the diode bridge (DB1) is approximately 0 V before proceeding.

Enter the voltage between (+) and (-) of the diode bridge (DB1)

Is the voltage approximately 0 V?

Enter the resistance between the pins of the DB1

Is the resistance 'infinity' or less than 1 kW?

If the resistance is 'infinity' or less than 1 kW, a short circuit occurs on the main circuit.

Sign off on the main circuit short 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.