If you're looking for your own "magic number," here are the common starting codes for major brands found in the Official Manual : 088 Daikin: 072–075, 127–130 Gree: 066, 067, 086, 108, 109, 142–144 Haier: 081–084, 148–153 Hitachi: 058, 135–138 LG: 077, 122, 131–134 Mitsubishi: 000–014 (Industry), 059–060 (Electric) Panasonic: 061, 062, 104, 105 Samsung: 038, 039, 068, 069, 145–147 Sharp: 051–055, 080 Toshiba: 056, 057
Do you have the of your AC unit so I can find the specific code for you? KT-109 II Universal AC Remote Guide | PDF - Scribd
Use the or TEMP- buttons to change the flashing numerals until they match the chosen 3-digit brand code.
Power on your wall-mounted air conditioner unit manually using its physical power button.