Why won't my propane gas dryer ignite?

I recently converted my brand new gas dryer from natural gas to propane. I'm looking to run out of a 20 lbs propane tank. I'm using the same regulators as my propane gas grill. Did all the connections according to the manual, but now it won't fire. Yes, it's plugged into power, it spins, but no fire on the gas burner...WHY??? What am I missing. (to see if it was lighting or not I left the bottom opened). I tested all connection on my gas grill and it worked, but in the dryer it won't. This is a Maytag performance series we're talking about.