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A dirty filter could cause the unit to run too hot which could shut the burners down but the blower would continue to blow (cold air). Replacing the filter and restarting the furnace may be all that's needed.
You really should get a new filter. Cleaning it usually doesn't work unless it's a re-usable filter.
I'm going to open this up to my colleagues so one of them can help. Please don't respond (even to acknowledge this post)until you get a response from us. If you respond first it will only delay your answer.
Hello, use the 'attach files' link to the left of your send button to send me a close up, *exceedingly will focused photo of the wiring diagram glued to the inside of the blower compartment cover.
I will point out the high temperature cut off switches, it is likely that one of them has tripped causing the problem.
Hello again, look for a paper clip icon at the right end of your tool bar and see if you can attach a file that way.
regarding the error codes in generally they are dead accurate less than 20% of the time in my experience, the other 80% of the time they are not as useful, about 50% of the time the error code itself is bogus....relying on the error codes from a distance as I am here most often results in a wild goose chase. There are more effective approaches.
See if you can get the wiring diagram photo to me that has been the most effective coaching tactic.