Remote may not work due to various reasons. Check the following: - Batteries may not be working or installed correctly. Try rolling the batteries inside the battery compartment to improve connection with the springs. - Ensure the remote is compatible with your equipment. This remote does not require programming unless specified as a universal remote. - The remote may need to be paired with your TV. - The unit's infrared receiving diode may be faulty, which is common in older units or VCRs. Model Number: YAC1FB For Tadiran Air Conditioner Compatible Models: YAC1FB, YAC1FB6, YAC1FB9 Battery Required: 2 x AAA (Not Included) This remote control is compatible with the following indoor 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: Light and display differences may cause slight color variation between the image and the actual item. Measurement may vary by +/- 1-3 cm.