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Software Incompatibility

Heat Pump software incompatibility with SMO S40

NIBE · SMO S40 Control Module

What does Software Incompatibility mean?

Certain NIBE air/water Heat Pumps, especially older models (pre-2019), may require a circuit board software update to function correctly with the SMO S40 control module. Failure to update can lead to system communication issues or malfunctions.

Common Causes

  • Heat Pump running an older software version than required for SMO S40 compatibility

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Identify the model and manufacturing date of your NIBE air/water Heat Pump.

  2. 2

    Access the Heat Pump's display or information menu to check its current software version.

  3. 3

    Refer to NIBE documentation or contact NIBE support to determine the minimum compatible software version for your specific Heat Pump model with SMO S40.

  4. 4

    If an update is necessary, arrange for a qualified NIBE technician to update the Heat Pump's circuit board software.

Browse all codes in this manual (8)
Verified technical data. Last updated: April 2026

Related Faults

Installation pump no contactAlarm: Installation pump has no contact with the supply temperature sensorLow/No Hot WaterLow hot water temperature or a complete lack of hot waterNo Display InterferenceOperational interference without a specific display message
Source: NIBE SMO S40 Control Module
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