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error Danfoss

Error Code E31

Error on air sensor, S2.

? What Causes This

Faults in the ambient temperature sensor (S2) leading to erroneous readings or connection problems.

How to Fix It

Diagnose and resolve issues with sensors or wiring. Replace faulty equipment if found.

Source: page 6 of the official manual

From the manual

Manual page 6 — Danfoss error E31

This error code appears in:

Danfoss Optyma Control