Daikin Outdoor Heat Pump RXS60E2V1B

Warning: This procedure should be performed by a trained technician

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 waveform check

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

Pull out the electronic expansion valve coil.

Warning: Be careful not to get yourself burnt with the pipes and other parts that are heated by the gas brazing machine.

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

Caution: From the viewpoint of global environment protection, do not discharge the refrigerant gas in the atmosphere. Make sure to collect all the refrigerant gas.

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.

Heat up the 2 brazed parts of the electronic expansion valve and remove it.

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

Preparation: Remove the electrical box according to the “Removal of Electrical Box”.

Disconnect the connectors from the service monitor PCB [S52] [S102].

Detach the 4 clamps with pliers.

Remove the screws of the terminal board and the earth wire.

Unfasten the hook on the right.

Output voltage between pins 1 and 3

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

If NG in step 1, what is the defect?

If NG in step 2, what is the defect?

If OK in both steps 1 and 2, what is the action?

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

Remove the 2 screws of the shield plate.

Preparation: Remove the top panel and the front panel according to the “Removal of Outer Panels”.

Slide the shield plate upward to unfasten the 1 hook on the bottom left, and then remove the shield plate.

Disconnect the 2 power supply cables and the 1 earth wire.

Remove the 3 screws of the right side panel.

Remove the screw of the electrical box.

Unfasten the hooks and remove the right side panel.