Remote may not work due to various reasons. Check if batteries are properly installed or try rolling the batteries inside the battery compartment to ensure proper contact. Verify that the remote is compatible with your equipment. This remote does not require programming unless specified as a universal remote. Ensure the remote is properly paired with your TV. In some cases, the infrared receiving diode on the unit may be faulty, especially in older units or VCRs. Model Number: YAC1FB Compatible with Tadiran Air Conditioner models: YAC1FB, YAC1FB6, YAC1FB9 Battery Required: 2 x AAA (not included) This remote control is compatible with the following indoor unit models: EACS-07HC EACS-09HC EACS-12HC EACS-18HC ZACS-07 HPF/A17/N1 Color: White Material: Plastic Package Contents: 1 x Air Conditioner Remote Control Note: The package includes only the items listed above. Other products are not included. Lighting and display differences may cause slight variations in color between the image and the actual item. Measurement may vary by +/- 1-3 cm.