REASONS WHY YOU MIGHT NEED TO CHANGE THE FLOW & RETURN NTC SENSOR:
- You get fault codes displaying any of these: F10 / F11 / F23 / F64 / F71 / F72 / F83 / F84 / F85
In this video I will show you from start to finish how to change a Vaillant's flow and return NTC sensors
10 сен 2024