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warning Labcold
Error Code L-b
The battery backup system has low charge, which may compromise controller functionality during power outages.
? What Causes This
Battery depletion or incorrect battery insertion/installation.
✓ How to Fix It
Install new batteries if necessary (only AA 1.5V alkaline non-rechargeable).
Source: page 43 of the official manual
From the manual
This error code appears in:
Labcold Intellicold