In this experiment we aim to detect Kaluza-Klein ( KK ) excitations of the bulk gauge field , emitted in a bremsstrahlung process on solar plasma constituents , by looking at a process analogous to the photoelectric effect inside the HPGe detector . Using a generic feature of the underlying effective theory that the unknown 4-dimensional gauge coupling is independent of the number of extra large dimensions \delta , we show that the expected number of events in the detector is insensitive to the true scale of quantum gravity for \delta = 2 . With the entire data collection time of 202 days in the energy interval 1.7 - 3.8 keV , the number of events detected was as low as 1.1 \cdot 10 ^ { 6 } , compared to 2.7 \cdot 10 ^ { 6 } from the expected high multiplicity of the solar KK excitations for \delta = 2 . Hence , our bound from the presumed existence of new forces associated with additional gauge bosons actually conforms with very stringent bounds set from various astrophysical considerations . Baring any modifications of the infrared part of the KK spectrum , this bound would therefore rule out the possibility of observing any signal at the LHC for \delta = 2 . Although a dependence on the fundamental scale referring to ( 4 + \delta ) -dimensional gravity turns on again for \delta = 3 , the experimental sensitivity of the present setup proves insufficient to draw any constraint for \delta > 2 .