I have a York Diamond 80 furnace that is about 13 years old. It has a White Rodgers Emerson 50A50-241 circuit board. Where can I find a place to decipher what the blinking LED trouble codes mean? I tried to Google for an answer but no luck. It brought up a lot of referrals to this web site. Thanks in advance for your help!

Check the inside of the blower door. What is the furnace doing?

I think I may have solved it. It would fire, then shut off continuously. I cleaned the flame sensor and it seems to be working properly for the last few days. Thanks for the response.

I'd say you probably have it fixed.

I need a replacement board, whet an I get one.

I need a replacement