Search results

  1. S

    Vaillant ecoTEC pro VUW 246/5-3 - Floor heating not working anymore (hourglass symbol appearing)

    I have a problem with the Vaillant ecoTEC pro VUW 246/5-3 gas boiler. The boiler is paired with an Vaillant eRELAX/vSMART thermostat/application, and I have floor heating. Until recently, everything worked as it should, but now the floor heating no longer works. Hot tap water still works...
Back
Top