No fire. I used it once and put it back in the box. It has been setting up for maybe 5 years.

Question

I used it once and put it back in the box. It has been setting up for maybe 5 years. I'm guite sure I used Diesel in it the only time i used it. I dont suppose I cleaned it. The fan comes on. It has fire at the spark plug. The fire will not ignite, and as a result it seems to trip a reset switch. I shut it off and back on only to go through the same thing.