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354

Info alarm 354 — Sensor calibration failed (specific sensor group)

NIBE · SMO 20 Control Module

What does 354 mean?

This information alarm indicates that one or more sensors failed calibration during the SMO 20's startup sequence. This alarm points to an issue with a specific group of sensors.

Common Causes

  • Faulty sensor(s) preventing proper calibration.
  • Loose or incorrect wiring to the sensor(s).
  • Software issue during the calibration process.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Check the connections of all sensors to the SMO 20 control module.

  2. 2

    Power cycle the NIBE SMO 20 unit to restart the sensor calibration process.

  3. 3

    If the alarm persists, identify the specific sensors mentioned in the error details (if available) and inspect them for damage.

Browse all codes in this manual (54)
Verified technical data. Last updated: April 2026

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Source: NIBE SMO 20 Control Module
Open Manual (Page 22)Search more codes in this manual