Federal Signal Corporation PA300

Tancook248

New Member
Sep 23, 2020
3
Nova Scotia
Morning:
We have just mounted a PA300 system (used) in our new Medical Response Vehicle (ambulance) the siren comes on automatically when the gain switch is turned on, no matter what setting the selection switch is on.
Any help would be appreciated, no radio attached
 

bpollard

Member
Jun 13, 2010
422
USA, SC
I would guess that you have a faulty "Manual/Horn" switch on the siren itself - if it's the model with the black plastic "paddle" switch this was common. Or you have a bad ground wire connection. I would remove the siren from the truck and bench test it with nothing but 12 volt power, ground, and a speaker connected. If it behaves in the same manner, you have isolated the problem to the siren itself
 

Tancook248

New Member
Sep 23, 2020
3
Nova Scotia
I would guess that you have a faulty "Manual/Horn" switch on the siren itself - if it's the model with the black plastic "paddle" switch this was common. Or you have a bad ground wire connection. I would remove the siren from the truck and bench test it with nothing but 12 volt power, ground, and a speaker connected. If it behaves in the same manner, you have isolated the problem to the siren itself
Thank you for the info, will try it tomorrow.
Much appreciated.
 

Trebor Cadeau

Member
Jul 22, 2016
21
Colorado
Well? What was the result? Thank you.
 

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