code4services.com
Member
Whelen 295SLSA6 back feeding 4 volts out of siren power wire. Only happens with slide switch active and siren in RAD position. Video was taken with ignition off. The siren power and prisoner light switch are powered by an ignition circuit. The prisoner light indicator light is dimly lit helping indicate the 4 volts. This indicator light has no significance except that it is what drew my attention to a possible problem. The circuit should be dead. Makes no difference what position the siren on/off switch is in.
I ran into this issue a while back and wondered if anyone else has seen this problem. Whelen tech told me it couldn't be happening, but I have seen it on at least three units. Not a big issue since the configuration that causes the back feeding is not one that would ever be used since the radio rebroadcast can't be used with the ignition off. (ignition off, slide switch on, and siren set to RAD)
I ran into this issue a while back and wondered if anyone else has seen this problem. Whelen tech told me it couldn't be happening, but I have seen it on at least three units. Not a big issue since the configuration that causes the back feeding is not one that would ever be used since the radio rebroadcast can't be used with the ignition off. (ignition off, slide switch on, and siren set to RAD)