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.