Remedy
Tip: Check the ceramic insulator is not damaged, this can cause the spark to earth, twist and pull the ceramic insulator to ensure it is not broken.
▶ Check the gas supply to the property and check the working pressure on the gas valve inlet.
▶ Check the gas-air ratio and the dynamic gas pressure.
▶ Check the ionisation electrode and the harness for damage or contamination (→ Chapter 9.10, page 59).