HELP!!! My boyfriend has recently re-plastered our kitchen and accidentally knocked the sensor off in the kitchen - we had forgotten to put it back on and this morning the damn alarm just tripped and started going off - we fiddled with the wires (where the sensor used to be) and this stopped the alarm outside but now the panel inside keeps beeping. We don’t know what the code is because the old owners never left a manual!!!! Please help the noise is hurting my ears!!! Thanks a bunch in advance !