What to do if operator alert buzzer cannot be silenced on Bosch Gateway?
- RRobert BarberAug 22, 2025
If the operator alert buzzer cannot be silenced, here's what you can check: * System stalled: Check the watchdog LED on the inside of the door behind the keypad. The LED must flash for a running system. A solid light indicates a faulty system. Reset power cycle of the D6600 if stalled. * Defective [Acknowledge] key: Order replacement part P6603. * Defective user interface card: Return the D6600 for repair.