Daikin Outdoor Heat Pump RXS35G2V1B

Check the connection of connector

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

Check the motor control voltage (pins 4 - 3)

Check the rotation command voltage (pins 4 - 2)

Check the rotation pulse (pins 4 - 1)

Sign off on the fan motor connector output check

Disconnect the connectors of the thermistors from the PCB

Thermistors disconnected successfully

Measure the resistance of each thermistor using tester

Select the model of the thermistor

For the models in which the thermistor is directly mounted on the PCB, disconnect the connector for the PCB and measure

Connector for the PCB disconnected successfully

Measure the resistance of the thermistor mounted on the PCB

Sign off on the thermistor resistance check

EV connector correctly connected to the PCB

EV generates latching sound when power is turned off and on

Continuity present when connector is disconnected and checked with a tester

Check continuity between the following pins

Note: Latching sound varies depending on the valve type

Sign off on the electronic expansion valve check

Warning: This procedure requires trained personnel with PPE!

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

Upload a photo of the measured waveform

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 reactor. Preparation

Remove the outer panels according to the “Removal of Outer Panels / Fan Motor”.

Remove the electrical box according to the "Removal of Electrical Box".

1 Remove the screw and remove the reactor.

2 The partition plate has a hook on the lower side. Lift and pull the partition plate to remove.

When reassembling, fit the lower hook into the bottom frame.;