Hi
I have a Vaillant Ecotec Pro. I needed to drain the rads to paint behind one. Although i still need the hot water. I shut off ch isolation valves, then drained the system.
However, it's now coming up with an F22 'dry fire' warning and no hot water. On investigation I noticed one of the isolation valves wasn't fully closed and I guess this is why? Is the only way to get the hot water on again to fill the System again? And hope I've doneno damage to the pump - is that likely? I hope not
I have a Vaillant Ecotec Pro. I needed to drain the rads to paint behind one. Although i still need the hot water. I shut off ch isolation valves, then drained the system.
However, it's now coming up with an F22 'dry fire' warning and no hot water. On investigation I noticed one of the isolation valves wasn't fully closed and I guess this is why? Is the only way to get the hot water on again to fill the System again? And hope I've doneno damage to the pump - is that likely? I hope not