Kerosene forced-air heater won't start

Question

I own a forced- air kerosene heater that won't ignite.
It has plenty of fuel in the tank and the power switch illuminates when i turn it on. There is a fuse on the inside of the right panel that check out "ok".
Is it common for the igniters to go bad? If so, how do I check it?

Thanks for "ANY" help
Rick