Hi, I'm sure you get a lot of these. I replaced the Thermalcoupling, the pilot lights and the fan comes on when I push it in manual. It just runs and does not start. Any clues? Thanks, Bill

Yankee23, try the Heating & Air Conditioning forum!

I have asked to have your question moved to Heating and Air Conditioning. Some of the people there are very good and have helped many home owners like you.

Read the sticky in the heating forum, https://www.askmehelpdesk.com/heating-air-conditioning/heating-cooling-maintenance-repair-troubleshooting-frequently-asked-questions-58313.html It is a great resource that must have taken a good man a long time to prepare. See checking to see if it is the thermostat.