Dark matter particles captured by the Sun through scattering may annihilate and produce neutrinos, which escape. Very competitive constraints have been derived in experimental searches at neutrino telescopes. Searches so far have solely focused on high-energy neutrinos created in decays of the dark matter annihilation products. A novel detection channel based on neutrinos from pion decays at rest, which are at the end of hadronic showers will be introduced. The potential of detecting these low-energy neutrinos at current and next generation detectors will be discussed.