The answer to 'carbon monoxide detector outlet not working' is that there are a few common causes, including a faulty outlet, a problem with the wiring, or an issue with the carbon monoxide detector itself. Symptoms may include the detector not powering on or not responding when tested. Solutions can range from simply replacing the detector to more complex electrical repairs.
If the outlet is the issue, you may be able to replace it yourself if you're comfortable working with electrical components. However, if the wiring or the detector itself is the problem, it's best to call a licensed electrician to diagnose and fix the issue. Trying to repair electrical problems without the proper training and equipment can be dangerous and may even make the problem worse.