Vermont castings grill? i have the home depot blue vermont castings grill. it won't light...

i have the home depot blue vermont castings grill. it won't light up despite have gas. i haven't had luck with the contest method either. any ways to troubleshoot it? what replacement parts would i need? i can't find anyone to service it. i be told by a VC dealer that they won't service or get replacement parts for the Home Depot model and I've have others say they don't service anything that wasn't bought from them.
Answers:    From the Vermont Castings Website:
"MY BURNER WILL NOT LIGHT OR DOESNĄ¯T GET VERY HOT ?


There are several possibilities:

* The gas supply from the Propane Cylinder may be closed off.
* The venturi Tubes may be blocked or not surrounded by place.
* The burner ports may be clogged or blocked. Clean the burner.
* You may be almost out of Propane. Refill the tank.
* The Overflow Control Device may have be activated. Perform leak test and follow the correct lighting procedure.
* The regulator may not be properly fastened to the Propane tank."