LG Artcool Dual Inverter CH21 Error After Two Weeks
I purchased an LG Artcool Dual Inverter air conditioner from Hepsiburada seller Lasen with order number 426 315 151 6 ab...out two weeks ago. Today, the device started giving a CH21 error code and it does not go away, so I cannot use the air conditioner properly even though it is almost brand new. I co