Five signs your furnace needs attention before winter

Short cycling

A furnace that turns on and off every few minutes is often overheating or has a sensor problem. Book a check before the first cold week.

A yellow or flickering flame

Gas burner flames should be steady and mostly blue. A yellow flame can point to incomplete combustion. Make sure your carbon monoxide alarms work.

Rising bills and uneven rooms

Dirty filters and worn parts make the system work harder. This is general information for a sample site, not professional advice.