FS 650 siren issue?

hawkspringsfire

Gold Supporter
I recently have gotten a FS 650 series siren. I was testing it and everything worked great except for the tone button. When I press the tone button nothing happens? The man button and AH button work. When the code 3 button is pressed I get the wail tone, but cannot get it with the tone button. Is there something I am doing wrong or can it be fixed?
 

shues

Lifetime VIP Supporter
I thought that seemed like a strange design when I read it, honestly. Does the horn ring circuit function as expected?
 

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