Daikin Heat Pump Outdoor Unit RXS36LVJU

Output voltage between pins 1 and 3

Generation of 3 pulses between pins 2 and 3 when the fan motor is operating

EV connector correctly connected to the PCB

EV generates a latching sound when power is turned off and on again

Continuity present when connector is disconnected and checked with a tester

Check the continuity between the pins

Note: The latching sound varies depending on the valve type.

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

Pull out the 3 lead wires. U: red, V: yellow, W: blue

Remove the overload protector (OL).

Before working, make sure that the refrigerant gas is empty in the circuit.

Be sure to apply nitrogen replacement when heating up the brazed part.

Warning: Use caution to avoid burning yourself with pipes and other parts that are heated by the gas brazing machine.

Warning: If the refrigerant gas leaks during work, immediately ventilate the room. If refrigerant gas is exposed to flames, toxic gas may be generated.

Warning: If the refrigerant oil in the compressor catches fire, have a wet cloth prepared to extinguish the fire immediately.

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

The hooks are secured in the clearances of the outdoor heat exchanger fins.

1 Unfasten the 3 hooks at the upper first, and then 3 hooks at the middle.

2 Unfasten the 3 hooks at the bottom and remove the suction grille.

1 Remove the 9 screws and remove the top panel.

4. Remove the right side panel.

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

Check to see if the power supply waveform is a sine wave

Check to see if there is waveform disturbance near the zero cross

Sign off on the power supply waveforms check