Lighting and Switches

Electrical Outlets

Electrical Circuits

Electrical Wiring

Electrical Repairs

Home Electrical Smoke Detectors

by Dave Rongey ©2007-2012
Summary:
Electrician Answers Questions about home smoke detector problem, smoke detector wiring, smoke detectors that sound at night.

home smoke detector problem

Question: Some of our smoke detectors have lost AC power. I've tried looking for loose connections in adjacent detectors and close-by receptacle/switch boxes, but have found none.

smoke detector wiring

Question: My hard wired smoke alarm system has red black, white wires leading to the smoke alarm. Does the red have power to shock me? Should I connect the third wire in the smoke detector to the red wire (inter-connect)? I have connected white to white and black to black.

smoke detectors that sound at night

Question: I have an electrical smoke alarm and it'll sound off in the wee hours of the a.m. It doesn't happen every night, but it happened this morning.