Hi there! It sounds like there could be a few potential issues causing the problem with your Edwards Signaling G4HFWF-S7 High Fidelity Speaker. Firstly, check the wiring connections to ensure they are secure and properly connected to the speaker terminals and the fire alarm system. If the connections seem fine, try testing the speaker with another known working device to rule out any issues with the speaker itself. Additionally, make sure that the speaker volume is set to an audible level and that there are no obstructions blocking the sound output. If these steps don’t resolve the issue, it’s possible that there could be a fault with the speaker or the fire alarm system itself, and you may need to consult a professional technician for further diagnosis and repair.