What causes a common trouble fault on an Edwards EST-3 panel?
The Chubb Edwards EST-3 is a fully addressable fire alarm control that employs an LCD display (I think you’ll find this is a common feature of addressable systems). When a “trouble” is indicated, a glance at the main display will more than likely identify the source. If the green “AC” power light is not illuminated, chances are power has been interrupted to the panel. A system “ground fault” will illuminate a dedicated LED on the main display as well as provide an indication on the LCD screen. For other “troubles”, use the up and down “scroll” buttons to the right of the display to view individually identified “troubles” on the system. Keep in mind that a “trouble” indication is a very serious condition and that certain key elements of the life safety system could be compromised. Please ensure you notify appropriate service personnel to deal with the situation.
