Weber SP 200 LP Owner's Manual page 31

Crossover Ignition System Operations
If the Crossover Ignition System fails to ignite the Front
burner, light the Front burner with a match. If the Front
burner lights with a match, then check the Crossover
Ignition System.
Check that both the white and black ignition wires
are attached properly. Figure 17.
White wire
Black wire
Figure 18
Check that the Crossover Ignition button pushes the
igniter (button) down, and returns to the up position.
Check to see if the igniter is loose in the frame.
Tighten if necessary; see Step "Install igniter" for
correct procedure.
If the Crossover Ignition System still fails to light, contact
Weber-Stephen Customer Service.
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