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My name is Billy.
So the red and yellow are not lit...just the green continuous blink?
I see you mentioned limit switch so you already are on the right track...
Just above the burners on the front wall is the limit we want to check...do you know where this is? Or can you post a pic so I can draw part location for you?
correct..they are different circuits but could still code the same.
Now..the one on vent pipe..is there a tiny button in center? and the one on front wall is credit card sized?
press button on vent switch...then tap the other limit above burner 3-4 times....tell me if light pattern changes
Either bad...or reacted to a problem.
Can you try a heat cycle now?
Is the furnace running now?
Excellent news....this could have been previous due to a dirty filter....obstruction in pipe now gone..anything that caused a bit more heat than normal.
I am glad all is well for you now...I would hold calling for service and only call if it were to trip again.
Just rate service (5 star rating system) to close for now and move off the active list.