Daikin Cooling-only Outdoor Unit RKS36LVJU

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

1. Remove the electronic expansion valve coil.

1 Pull the electronic expansion valve coil out.

You can remove the thermistor ASSY with the electrical box on.

(1) Disconnect [S90] from the electrical box (main PCB).

(2) Release the thermistor harness from the hook at the bottom of electrical box.

(3) Pull out the clamp of the thermistor harness from the hole of the electrical box.

1 Pull out the outdoor heat exchanger thermistor.

1. When the timer cancel button is held down for 5 seconds, 00 is displayed on the temperature display screen.

2. Press the timer cancel button repeatedly until a long beep sounds.

The code indication changes in the sequence shown below.

Note: 1. A short beep or two consecutive beeps indicate non-corresponding codes.

2. To return to the normal mode, hold the timer cancel button down for 5 seconds. When the remote controller is left untouched for 60 seconds, it also returns to the normal mode.

3. Not all the error codes are displayed. When you cannot find the error code, try the check method 2. (Refer to page 92.)

Check Method 2 1. Press the 3 buttons (TEMP, TEMP, MODE) at the same time to enter the diagnosis mode.

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.

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.

With the power on, operation off, and the connector connected, check the following

Output voltage of about 5 V between pins 1 and 3

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

If NG in step 1 or 2, select the defective part

If OK in both steps 1 and 2, select the part to replace