<p>The so-called <i>X</i>17 particle has been proposed in order to explain a very significant resonant behaviour (in both the angular separation and invariant mass) of <i>e</i>⁺<i>e</i>^<i>−</i> pairs produced during a nuclear transition of excited ⁸Be, ⁴He and ¹²C nuclei. Fits to the corresponding data point, as most probable explanation, to a spin-1 object, which is protophobic and has a mass of approximately 16.7 MeV, which then makes the <i>X</i>17 potentially observable in Coherent Elastic neutrino (<i>ν</i>) Nucleus Scattering (CE<i>ν</i>NS) at the European Spallation Source (ESS). By adopting as theoretical framework a minimal extension of the Standard Model (SM) with a generic U(1)<i>′</i> gauge group mixing with the hypercharge one of the latter, which can naturally accommodate the <i>X</i>17 state compliant with all available measurements from a variety of experiments, we predict that CE<i>ν</i>NS at the ESS will constitute an effective means to probe this hypothesis, even after allowing for the inevitable systematics associated to the performance of the planned detectors therein.</p>