Ignition and ionization electrodes are critical for safe startup and flame monitoring.
Ignition electrode
It must generate a stable spark at the correct point relative to the ignition zone.
Ionization electrode
It detects the presence of flame through ionization current.
Contamination and wear
Deposits, cracks in the insulator, or incorrect gap distance can cause unstable operation.
Post-maintenance inspection
Verify the position according to the manual and check the reliability of the ignition and the flame signal.



