Why are the rooms in my home are different temperatures?

The first thing to check is that your vents and registers aren’t being blocked so that the air can properly flow in your home.

If your vents and registers aren’t blocked, it’s possible that a dirty furnace filter is restricting the air flow in your home. Check to see if it needs cleaning or replacing.

If neither of those solves the problem, it’s best to call a professional to come take a look.