Hello all and thanks in advance for the assistance. My furnace is exibiting a few odd symptoms that lead me to believe I need a new control board. It will go through a normal purge and start-up sequence. The ignitor will come one, the gas will start, the flame will start (a little erratic on the left hand side, opposite where the gas comes in - I have removed the burners and clean those and the gas nozzles), the ignitor goes off, the flame remains (and becomes steady), and a few seconds later the gas shuts off. The other erratic thing, and this is the biggie, is that the flame sensor reads 104 VAC... yes AC. That is way way too high and the wrong type of current. Has anyone seen this before? Am I right in assuming the control baord? Where is a good online store for ordering one? I recently found a good service manual on line and plan on checking board test points to see if the 24 volts and the 120 are OK.