Sure, there could be a few reasons why your Fire-Lite CHG-75 is experiencing issues. First, check the power supply and make sure it’s properly connected and providing sufficient power to the unit. Next, inspect the wiring connections to ensure they’re secure and not damaged. Also, verify that the batteries are in good condition and properly installed. If everything appears to be in order, it’s possible there’s a malfunction with the unit itself, in which case you may need to contact Fire-Lite technical support for further assistance.