Thanks robert for the quick reply. I rechecked the model #.. the number is correct. there are no more letters etc. i pulled it right off the label on the unit. I just think its really old.. If i check the terminals at the ignitor control box and i lose the 24 volts there, can i assume its the box, o...

coleman evcon 70 gas furnace- model #790e766..I realize this is a very old unit. It has been working great till this winter. It will not light off.. facts: ignitor lights up.(electric type)...ignitor box replaced last year...replaced ignitor ...replaced gas valve....getting 24+ volts at gas valve fo...