jslais57

Yes it stops completely. I am going to change the speaker to a different type that should remain silent until it gets a full signal from the panel.

I will. Thanks for you help.

I have seen similar smoke detectors but I hesitant to buy something that old. Going from old to old. I may try to call Brinks but they will probably laugh at me for trying to keep this old system going. But I am like that, I don’t believe in today’s throwaway society. I can try to put a different speaker in with a difference in impedance. Don’t have the ability to move it to a different zone. All I know is it has something to do with the replacement smoke detector.

I do it all around here. LOL

I removed the resistor; reattached the smoke detector and yes the system yelled at me. And the noise was still coming from the speaker.

Yes, one smoke detector at the top of the steps on the second floor. I have others downstairs but they are not tied into the Brinks system. I will pull the resistor off and see if it goes quiet and report back! I know the system will yell at me, been there done that.

Thanks so much for the reply. My system has only one smoke detector on the second floor, and that was the one replaced. I have checked all terminals at the control box, all were good and tight. I also verified earth ground at the box. EOL line resistor is at the detector. Battery is less than five years old, the keypad will announce if it is bad, but I can verify. The transformer is the original, I will verify proper voltage. What puzzles me is this only happens now with this detector.

All, I have an older Brinks hard wired home alarm system that I still use as it is now monitored by ADT. Recently I was getting a trouble message for zone 8 on my keypad which is my 2nd floor smoke detector. Since the smoke detector was original to the Brinks system I replaced it with a System Sensor 4WTR-B 4 wire detector. This was recommended by the dealer as the original sensor was no longer available. A simple installation followed complete with the EOL 4.7K resistor for wire monitoring. The detector is functioning as normal with one flashing green LED every 5 seconds and my zone 8 trouble is gone. The issue is now I have a noise coming from the indoor siren (speaker) that resembles a pop just like dropping a tone arm onto a vinyl record album. OK, now I am showing my age!. Also, if i put my ear up to the speaker I can hear noise too. The pop happens every 7 - 8 seconds so it is not a direct correlation to the flashing LED on the detector. When I remove the detector by twisting it off its base the noise goes away. The company I purchased this detector from sent another one just to be sure the first one was not defective. Same issue with both. The extra detector is now listed on EBay because the original seller can't take it back. Is this just a matter of the detector not compatible with my Brinks system? If so, what detector can I use? Listening to that faint popping noise from that speaker in my quiet family room is getting on my nerves. Any ideas?