  The proposed future Large Hadron Electron Collider provides sufficient center
of mass energies, $\sqrt{s}$, to probe heavy particles decaying into
$W^\pm(Z)-$boson of mass $>2m_W$ $(2m_Z)$. In this work we present a study to
produce one such heavy $C P$ even scalar $H$ of mass $2m_h < m_H < 2 m_t$
through charged-current production mode where $H \to W^+W^-$, where hadronic
decay of $W^\pm-$boson is considered to reconstruct $m_H$. Due to the presence
of missing energy and forward jet in this channel, it is challenging to
reconstruct $m_H$ with above final state and thus we employed three different
reconstruction methods and discuss the significance of each one. For this
analysis we consider a benchmark value of $m_H = 270$\,GeV and $\sqrt{s}
\approx 1.3$\,TeV with an assumed luminosity of 1\,ab$^{-1}$.
