Sensen heating rods cackle when heated.
It is not normal for the heating rod to rattle when it is working. The heating rod uses an electric heating wire, which will not make a sound under normal working conditions. The noise generated by the electric heating rod studio is related to the disconnection of the thermostat contact. It is also related to the damage of the heating wire. When there is noise in the temperature difference state, it is necessary to check the equipment or ask professionals to repair it.