I have a nordyne furnace model E2EB-012HA and the element is going on and off with out the blower coming on. I've taken it apart, and from what I've read here it must be a relay or sequencer. How do I know which it is? Also, how can I identify what it is? Thanks.

There is a wiring diagram located on your furnace. Use it to locate. Is this unit in a mobile home?

See item 6 for the sequencer.

http://www.nordyne.com/Literature/707719.pdf

Furnace

http://www.nordyne.com/Literature/901a.pdf