we use a danfoss 841 school bell timer system, lately we have noticed all the bells are not rinnging loud enough and seem a few seconds shorter than they used to be when ringing, what could be the fault of all of them sounding dull and ringing for a shorter time, than they used to, we had some major
renovation done within the school recently, i cannot see how any of that would effect everybell though, could it be the danfoss 841 unit itself, or its powersupply
renovation done within the school recently, i cannot see how any of that would effect everybell though, could it be the danfoss 841 unit itself, or its powersupply