Hello.

I am having an issue with the subject mentioned model aircondition.

The issue is that the interior unit is operating normally without any error leds but the external unit does not start at all.

I had asked Samsung here in Greece to provide me with the reset code but they denied and they told me that a technician must come and if necessary to perform by himself the reset code for 50+ euro.

Since i didn't have the reset codes i opened the external unit to check the board and i saw that that the three LEDs have light. From the attached diagram right next to the board i found out
that the error of the three LED's with steady light is POWER ON RESET (1sec).

Can anyone help me?

Thank you in advance