Well,I'm no master of the Pioneer stove,but here goes...1.) I'm presuming you've replaced a primary combustion air fan motor. Is there an air control shutter or plate which can throttle the air flow up or down manually like on my Harman ? If there is,try reducing the air flow by half until you're able to create a good seat of fire and hot coals to manually introduce coal in on top of that bed. 2.)Have your coal feed off until you can get this going,then turn it back on and bring the rate up gradually. Again,I've got a Harman Stoker,not an LL. I figure ,though, that getting your stove lit off should be similar. Let us know.