How to Tell if a Collector Box on a Grill Will Work
- 1). Turn off the gas on the propane and inspect the burner control knobs to ensure they are in the "off" position. This will prevent the grill from turning on while your face is close to the collector box.
- 2). Find the wires under the grill that extend from the ignition switch to the collector box. This is the easiest way to find the box.
- 3). Place a mirror by the collector box so you can see the electrode and touch the igniter button at the same time.
- 4). Press the igniter button. If you see a spark come from the probe inside the collector box, the collector box works properly. If you do not see a spark, the collector is defective.
Source...