I know my installed magnets got weak real fast once you turn up the temp. I found these cobalt high temp magnets online. cheap investment I cut a small slit in cover where magnets were slid them out and replaced them, I used high temp tape to close up the slits. I have to say it was well worth the time to do. I ran my grill at 500 degrees to make sure it worked. And now I no longer have to pull the cover into place every time I open up the lid. Hope this will help someone out there, it works you will be very happy. Just wish the factories would install them in the first place.