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Refrigeration failure at night: why you find out in the morning and how to prevent it

29. 06. 2026

In brief

  • Without monitoring you discover a night failure only in the morning — fridge temperature exceeds the limit within hours.
  • Spoiled stock often costs more than a whole year of automatic monitoring.
  • An instant alarm to your phone (push, e-mail or SMS) wakes you before the stock is ruined.
TempeStorm does everything in this article automatically — it measures, keeps HACCP records and alerts you when limits are exceeded. How it works · Build your price

Most refrigeration failures don't happen during opening hours. The compressor dies at midnight, a breaker trips on Saturday evening — and you find out in the morning, when it's ten degrees warmer inside and the stock is gone.

The night scenario

23:40 — the freezer compressor fails. By 2:00 the temperature climbs from −18 to −8 °C, by dawn it's near zero. At 7:00 you open up and find defrosted stock. Nobody noticed, because nobody was there — and the paper log gets filled in in the morning.

What it costs

A full freezer of meat is hundreds to thousands of euros of stock. The second scenario is worse though: the temperature recovers overnight (say, after a short power cut) and with no record you don't even know the stock passed through the danger zone — and you keep selling it.

Why a paper log won't catch it

Writing values down 2–3 times a day captures the moment of writing — not what happened in between. Night and weekend swings are exactly the gap where the biggest losses happen.

What helps

Automatic monitoring watches the temperature continuously and sends a phone alert within minutes of a limit breach — enough time to move stock to a backup unit or call service. The system also reports power outages and works independently of your internet. Every event stays on record with its corrective action — so an inspector sees you handled it.

Časté otázky

An alert goes out once the temperature breaches the limit for a set duration — typically within 10–15 minutes of the problem starting, even at 3 a.m.

Yes. Monitoring keeps running and data syncs automatically once the connection returns; with a SIM card from us the system is fully independent of your internet.

The system records and reports the outage — so you can tell an equipment failure from a power cut and document it in your records.
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Ondrej Remeselník
Creator of TempeStorm, electrical engineer & developer (27 years in software) — DataStorm s.r.o.

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