Your AF-2009D manual includes a maintenance schedule. Follow these rules:
Not necessarily. Many OEM factories produce identical hardware under different brand names. The manual may still be compatible, but verify key specifications (input protection category, max voltage) against the device label. af-2009d manual
When on a timer (e.g., ①), press to enter adjustment mode. Your AF-2009D manual includes a maintenance schedule
If "Lo" appears on the LCD screen, replace the batteries within three days to prevent the feeding drum from stopping in an improper position, which could cause overfeeding or food spoilage. Mounting Options af-2009d manual
Refer to your unit; common layout: