Wow...many thanks for the responses. Yes, we are working closely with Federal Signal on the rotation issue, as well as the chopper fuse-blowing issue. We've had our share of unavoidable failures, due to lightning, etc... However, failures to the battery chargers, battery charger status switches, Cho...

Is anyone having problems with Federal Signal 508 sirens? I maintain 113 of these, and have had lots of screen and screen hardware issues. Also, rotate/chopper motor current detect cards showing false positives and false negatives (saying the siren is rotating when, in fact, it's not..also showing n...

Unfortunately, that's not storm damage. It's poor design. There are 113 508s near Chattanooga, TN, another 101 in Spring City, TN, as well as the 105 near Athens, AL. We're having problems with just about all aspects of these 508s. The screen hardware is just the most visible problem. Since our sire...