Low Risk - DIY Check OK

Liebherr Commercial Freezer Stored Alarm Log A01 to A30 (ProfiPremiumline)

The ProfiPremiumline controller stores thirty alarm events, numbered A01 upward, with the highest number being the most recent. Each entry carries three things: when the alarm started, when it ended, and the highest temperature reached inside the cabinet while it…

What A01-A30 Alarm Memory Means

The ProfiPremiumline controller stores thirty alarm events, numbered A01 upward, with the highest number being the most recent. Each entry carries three things: when the alarm started, when it ended, and the highest temperature reached inside the cabinet while it ran. It is a log rather than a problem, and one most operators never discover.

Common Causes of A01-A30 Alarm Memory

  • Normal operation of the controller's alarm recording function
  • An accumulation of real alarm events that nobody has read

🔧 One Safe Check You Can Try

Reach it through the alarm menu and step back through the entries with the selection buttons. This is genuinely useful housekeeping — a log full of short door alarms says something different about a kitchen from a log full of long high-temperature events.

⚠ Why You Shouldn't Go Further Than That

  • The log is the only place the duration and peak temperature of past alarms survive, and a technician arriving to an intermittent complaint can often diagnose it from these thirty entries alone.
  • Liebherr notes that the alarm display is deleted automatically after being queried, so a log read carelessly is a log partly lost.

Opening a panel to inspect or repair something yourself doesn't automatically cancel your manufacturer's warranty — but it can risk accidental damage, and some manufacturers do have specific service conditions. Check your product's warranty terms, or ask us, before deciding.

Other Commercial Freezer Repair Error Codes

Behavior Not Matching What's Described Above?

If A01-A30 Alarm Memory is showing up earlier than expected, coming with other warning signs, or you're just not sure, book a trained technician for a proper diagnosis.

FAQ

A01-A30 Alarm Memory FAQ

Yes, and it is one of the better features on this controller. The alarm memory holds the last thirty events with their start, end and maximum temperature.

Liebherr provides a serial interface and a data-evaluation accessory for exactly that on the Profi line. Without it, the log is read on the display and written down.

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