Although it is important for smoke detectors to be in every home and building, they can become very troublesome when chirping or sounding a false alarm. If this happens, follow these steps.
If a 9-volt battery powers the smoke detector, then remove the old battery and replace it with a new one. If this does not solve the problem, replace the entire unit.
If your home is equipped with hard-wired smoke detectors, then you will need to flip off your circuit breakers until you find the circuit that has your detector on it. Once you have found the right circuit, turn all of your circuits back on and see if the problem is solved. If not, then you will need to replace the broken smoke detector with a new one.