My smart alarm system's event history has been blank since the last update
Home Nura guide — category: Home Security Systems
Diagnosis
This symptom isn't trivial, but in most cases you can fix it without calling in a pro. Work through the steps below in order and stop as soon as the problem clears up.
What to do
1. Unplug it and let it cool. 2. Inspect the parts you can reach. 3. Follow the manufacturer's procedure (owner's manual or official website). 4. If the fix means taking the unit apart, stop and contact customer support so you don't put the warranty at risk.
Repair or replace?
If the problem is still there after these checks and the appliance is out of warranty, weigh the repair estimate against the cost of a new model.
If you're replacing it
Home Security Systems: the picks from our buying guide
- View on Amazon →
Best overall
Ajax StarterKit 4G
An Ethernet and 4G hub (two SIM slots), up to 16 hours of backup battery, long Jeweller radio range and Grade 2 certification.
Photo: © Ajax Systems
- View on Amazon →
Best break-in detection
Somfy Home Alarm Advanced
IntelliTAG sensors pick up vibrations before a door or window even opens, with a 110 dB siren and five years of cellular (GSM) backup included.
Photo: © Somfy
- View on Amazon →
Best value for Alexa users
Ring Alarm Pack M (Gen 2)
A simple entry-level kit: built-in 104 dB siren, 24-hour backup battery and Alexa integration. Cellular backup requires a Ring Protect plan.
As an Amazon Associate I earn from qualifying purchases. Amazon affiliate links: we earn a commission at no extra cost to you.
Other common problems in this category
These issues affect the same type of appliance — each one comes with a diagnosis and the steps to take.
- Home Security SystemsMy smart alarm system keeps going off at night for no reason
- Home Security SystemsThe siren on my smart alarm system won't sound anymore
- Home Security SystemsHow do I set up auto-rearm on a smart alarm system?
- Home Security SystemsThe exit delay on my smart alarm system is too short and it goes off as I leave
Frequently asked questions
Check the manufacturer's warranty first: how long it lasts and what it covers vary by brand and model, so read the terms for yours and keep your proof of purchase. If you bought it new in the EU, a two-year legal guarantee also applies (Directive (EU) 2019/771), covering defects present at delivery, whenever they first show up.
If you're still within the seller's return window, a return or exchange is usually the fastest fix. After that, go through the manufacturer's support team: it handles warranty claims and can often repair the unit even after the warranty has run out. Either way, keep your proof of purchase.
Our public methodology lowers the Nura Score /10 of any model in our Home Security Systems guide whose recurring failures show up in owner reviews. A model that breaks down too often never makes it to the top, whatever the brand.
Generally, yes, if you stick to routine maintenance: cleaning, replacing a gasket, recalibrating. Irreversible changes to the hardware are what can cause problems, so read your warranty terms before you open anything up. Anything the manufacturer's manual walks you through is the safe zone.
Your proof of purchase, the exact model name and a record of the symptom: photos, a short video, the sound it makes and any error code. Note when the problem started and what you've already tried. With all that in hand, support can pin down the problem much faster.