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warning Labcold
Error Code n-b
No backup batteries are installed but battery monitoring is enabled, indicating potential loss of controller functionality in case of power outage.
? What Causes This
Batteries not properly fitted or not purchased with the unit.
✓ How to Fix It
Install 4 x AA 1.5V alkaline non-rechargeable batteries as per instructions (page 26).
Source: page 42 of the official manual
From the manual
This error code appears in:
Labcold Intellicold