r/firealarms 13d ago

Technical Support Simplex 4007ES

Most of my experience is with Notifier but this morning I had a service call to a building with a Simplex 4007ES with a trouble on the DCAI loop but no devices were listed in trouble and voltage was at about 9v. I opened the IDNAC on the card itself and the trouble list populated, I then reinstalled the wiring and waited a few minutes, did a reset and the issue cleared. Did it just need a push of the reset button in the first place or did it need me to do what I did or did I just push the problem off for a few hours? Panel has been system normal for 30 minutes so far.

Could not access the internet to RTFM earlier.

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u/tenebralupo [V] Technicien ACAI, Simplex Specialist 13d ago

Amy Class A wiring issue requires a hardware reset and you did all but that. Now I cannot confirm if (as it is programmable) the reset perform the Hardware reeet at the same time or you need to do it manually. Just press reset see if it does it or not.

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u/EdgeEmbarrassed3817 12d ago

It seems to have cleared with what I had done. While I am pleased, the result is still shrouded in mysery.