A opening limit is usually opening for a reason. Usually it's due to poor airflow. This could be because of a plugged up air filter, dirty air conditioner coil, dirty secondary heat exchanger coil, too many supply registers closed, supply or return registers blocked by furniture or other things, and/or an oversized furnace hooked up to undersized duct work.
If all of those check out, then the next most likely cause would be a bad heat exchanger.
The 3rd most likely cause would be gas pressure that's too high.
As far as things you can do as a home owner, check to make sure the filter is clean and not a "Filtrete" or similar kind that is too restrictive. Perhaps try a cheap spun fiberglass kind as a test to see if that helps. Also make sure all of your supply and return vents throughout your home are open.
If those 2 things don't help, it usually means it's time to call in a pro.
If the pro determines that you need a new furnace, strongly consider going down a size or 2. This is because most furnaces that are out in the world tend to be over-sized. Contrary to how most people think, a smaller furnace usually works a lot better, is quieter, more efficient, more comfortable, and longer lasting. If you can find a company to run a proper "manual J" load calculation to determine the actual size that you need that's even better.