sixwheeledbeast

Sounds like a "Bell Delay" wait some time and see if it activates.

Nice to see Eaton have kept the classic Scantronic quirks...

Well the panel isn't capable of EOL so it should be O/C

How do you know, I didn't expand, safe to say I have seen hundreds more systems in my time... I don't think it's relevant to play who can pee up the wall higher... The OP wants their alarm repairing I have pointed out it's poorly installed. They can investigate why or get someone to fit it properly.

Seen plenty of poorly installed stuff from all types of origins... there will always be plenty more.

No global tampers and it looks like a basic panel so only a bell tamper on the whole system In the middle of a ring or radial when it should be on a 3a spur. It's poorly installed so who knows what else will or won't work...

"Worked" is relative. It can seem like it works, but I mean fully functional system. They do have a Remote LED feature but it's unlikely to be used if wired like you say. Does the alarm activate irrelevant of the LED on the device.? FWIW no movement sensor with be 100% pet proof, a different system design with perimeter protection would be the preferred option.

Maybe the system never worked before Did it still light up when you did the armed test.

Yep could also be faulty battery dragging the system voltage down, especially if not serviced. If so power supply will need checking for charging rate before battery replacement.

Sounds like too much current for most panels, would need to do standby and load current checks to make sure the battery and power supply is suitable. That Veritas sounds very overloaded.

Mains failure and it's running on battery. Maybe a fuse blown inside or circuit breaker tripped. Eventually the battery will die and trigger the external sounder.

Completely different panel and power supply setup. Premier will be a fair bit more in depth to program. A plastic cab will always yellow slightly with age but not go brown in the top left like some Veritas do. Normally that's a sign that the power supply has been heavily loaded, should do current checks. The Metal cab has a larger power supply and battery capacity, if that's a concern.

Switch mode power supplies and the regulator is off the board so will not be the same.

Yuasa are a good brand NP7-12 most likely

Yes, you could say they should have someone available much sooner but we don't know the full story. If this is non-contract and they have contract work booked that would obviously get priority. It's also self-inflicted you were told it was going to cause an issue and did it again, so I can understand it being considered less priority if busy.

The installation company and their procedures all sound perfectly reasonable. Vibration devices need to be calibrated if any changes are made to the mountings or frame. If you are paying a considerable amount more because of the companies distance away (unusual they would only normally charge for on site time); find a closer company but they will have similar procedures. I don't know Pryonix kit too well but most manufacturers with an app require an registered installer account and annual maintenance agreement to keep it active.

Diagnose and repair the tamper fault?

I've had a couple of those, only the entry door was connected properly.

I have known it to be used as leverage to lower the asking price. It sounds like unmaintained skip fodder TBH.

Those probably don't have a license, Technistore does... it's the main part of business like I said above. Technistore is included by the manufacturers, not made by them for complying.

Congratulations for downloading software without license...

It's proprietary, this software is one of the main assets to the company; unlike other product manufacturers you mention. Use another option or ask the ARC to set it up while your on the phone. If you have an issue with this being incorrect as a company, include it as part of RMV procedures you'll have majority sorted in 6 months.

No alarm component I know has 4x C batteries, that is most likely a doorbell.

Removing the hold off voltage should trigger the bell so best to replace the whole unit.

Yes, and yes as a temporary fix. It's down to if there will be further damage to the wiring in the near future. Something could be crushed or being chewed at for example. Also consider that you need 5 cores minimum, so you will have to cross check when pairing your cores. If it's the wiring and the bell and as important it's battery are in good working condition; there is no need to replace. When I say cross checking multiple pairs but also open circuit between everything too.