1, the lighter is broken, so it can't strike the fire normally.

2. The gas port of the cooker is blocked, and the gas cannot be discharged normally, which is mainly caused by oil pollution.

3. The gas bottle is leaking!

4. The burner is blocked.

5. The gas pipe is not connected properly.

6. The ignition button does not work normally.

This should be the case, you can check it in detail!