Vaillant ecoTEC Pro 24 Combi F.62 – Fault: Fuel valve switch-off delay

F.62

Fault: Fuel valve switch-off delay

Vaillant ecoTEC Pro 24 Combi

Possible cause

Delayed switch-off sequence for the gas valve after the flame is extinguished

Measure

Check: Gas valve, surface of the burner (dirt), plug, cable harness, PCB.

This code also applies to: