Quote Originally Posted by doggone View Post
How do you expect us furnace techs to buy crappie jigs...buy boats...and gas to get there if you everybody keeps fixing there own stuff huh???...what about that??? LOL.

Sometimes you need to clean the burner face closest to the flame rod. The integrated circuit board applies an a/c current to the flame rod....when the flame touches it the current flows through the flame to the burner face which allows the current to flow back through ground to the board.As the current flows through the flame it is rectified to DC.The board is looking for that DC current flow.So anything that impedes that circuit whether it be the connection to the rod,material on the rod,or rust on the metal its grounding too can all affect it.

Thanks for the added info. Its good to know.
Furnace Techs are needed for the harder stuff. I just don't want them to have a bigger boat then mine...