The answer to 'why is my smoke detector outlet not working' is that the outlet may have an electrical issue or the smoke detector itself may be malfunctioning. Common causes include a tripped circuit breaker, faulty wiring, or a problem with the smoke detector unit.
First, check the circuit breaker that powers the smoke detector outlet. If it has tripped, reset it and see if the outlet starts working again. If the breaker keeps tripping, there may be an electrical short or overload that needs to be addressed by a professional electrician.
Next, inspect the wiring to the smoke detector outlet. Look for any loose, damaged, or exposed wires that could be causing an issue. If you're not comfortable working with electrical wiring, it's best to call an electrician to diagnose and repair the problem.
Finally, the smoke detector itself may be malfunctioning and preventing power from reaching the outlet. Try replacing the smoke detector unit to see if that resolves the issue. If the outlet still doesn't work with a new smoke detector, the problem is likely with the electrical system and you should have an electrician take a look.