My honeywell furnace control lite blinks 3 short times and 1 slighty longer .trying to figure out if it means 3 blinks or 4 ? I assume 4 witch would mean no circulation air flow . What would be the common problem or repair?

Here is all the info you will need

http://techlit.honeywell.com/techlit/Pdf/PackedLit/69-0780.pdf