A-3 insights
Why one room stays warmer than the rest
A practical first look at uneven temperatures.
Check that supply and return grilles are open and unobstructed. Compare the temperature at several rooms at the same time of day. Notice whether the problem changes when doors are closed. These observations help a technician distinguish a control problem from airflow or equipment performance. Avoid closing many vents to force air elsewhere; that can affect system operation.
When to call for help
If the system is not maintaining temperature, makes unusual noises, or the problem persists, call A-3 at 773-552-0586. Tell us what you observed and when it started.