Grill Down!
Well, sorta. For the last couple months, I have had a problem lightning the number 4 burner with its sparker. The sparker would spark and gas would flow, but the tube would not light. Recently, I resorted to firing up the 3 & 5 burners and then just the gas on 4 to get it going. This patented procedure isn't necessarily safe, but it worked.
Although the 650 is a little over a year and a half old, it is used quite a bit. I called Weber Customer Service and verified that I was doing everything correct. I had already disassembled the manifold and burners and cleaned the tubes and the sparker, but still no light. I had a great CSR who, after going through the standard list of checks, sent me a new manifold.
Although it took about 3 weeks to arrive, it only took me 15 minutes to replace. I have had quite a bit of experience dismantling the grill for cleaning...and the removal of the occasional "asparagus overboard". Once you pop off the knobs and front cover, the manifold is released by unscrewing two screws on the far sides of the unit.
From there, I disconnected the main gas line and then then gas lines for the IR burner and side burner.
With everything disconnected, the manifold slides right out. With the old manifold out, I slid the new manifold in and redid the connections.
Since we are talking gas and tight connections, the soaping of the joints is the most important step. No bubbles = no unforeseen explosions.
With the manifold in place, the cover on and the knobs back in their spot, I was ready for the test light.....and success! It fired right up.
With the manifold completely out, I re-inspected the failing burner. Everything appeared fine: no unseen obstructions, no damage, no nothing. Fortunately, Weber has stood behind this grill, and my others, 110%. The 650 has had some problems since un-boxing day, but they have all been corrected and she continues to perform great. For that, I am happy and suddenly hungry.