What do you mean by "sequencer appears to be good" ? When you looked at the elements, are you sure that NONE of them are energized ?
Did you test all the elements at the front plates to see if any were getting power ?
It would be rare for them ALL to fail at same time. So, need to be sure that there isn't at least one working.
Some people are Humbly Grateful, while some are Grumbly Hateful.................... Which one are you ?