I’ve had a Vaillant Ecotec pro 28 for about six years now. It was fitted with a VR 470f and an outside weather compensator. The outside sensor (VR20) unit has been playing up recently – the reading for the outside temp gets stuck and it very often defaults to 0 degrees. The problem with this is that the boiler will regularly fire up (frost protector) when there is no need. There doesn’t seem to be a way to switch frost protection off.
Anyway the cost of a new outside unit in close to £200 so I was wondering maybe I should forget about it and just buy the Vsmart instead. That costs about £170 and I will need to have an installer to connect it up. So more than the sensor but might be a better option. What do people think?
Anyway the cost of a new outside unit in close to £200 so I was wondering maybe I should forget about it and just buy the Vsmart instead. That costs about £170 and I will need to have an installer to connect it up. So more than the sensor but might be a better option. What do people think?