Vaillant ecoTEC Pro 30 Combi F.22 – Safety switch-off: Low water pressure

F.22

Safety switch-off: Low water pressure

Vaillant ecoTEC Pro 30 Combi

Possible cause

No/insufficient water in the product or the water pressure is too low

Measure

1. 2. Check: Plug, cable to heating pump or water pressure sensor, water pressure sensor, heating pump. Activate and purge check programme P.0.

This code also applies to: