Originally Posted by narrlee
Thanks to you all for the great info. I now know where to start!
Spark electrode has dual fucntions:
*Provide high voltage spark for ignition
*Return path for Flame Proving ....miiliamp current that circuit board must detect to keep DC on gas valve solenoid
No FLame Proving ...no DC on gas valve
Dosen't take much to stop milliamp current
Dirty electrode tip
Wrong spark gap
Bad wire connection at circuit board transformer/inside the ceramic insulator at electrode
Cracked ceramic insulator...current goes to ground
Bad circuit board
SO...did you find the issue...replace the spark electrode?
Is it now working??????????