Vrt 350 thermostat

[Worthy20]

Hi I have a vaillant ecotec. 28 year 2020 with a vrt 350f thermostat with built in receiver I want to put netatmo smart thermostat in but how do I over ride the built in receiver thanks

 

[CBW]

I think it would be done when the wiring is installed for the new thermostat, but if not then remove and fit a blanking plate.

 

[Worthy20]

Yes I have removed the receiver but the boiler seemed to override the new thermostat when testing it

 

[CBW]

Then you have a different issue. Was the 24v link removed? Post photo of wiring if unsure.

 

[Worthy20]

Yes removed RT link wired new thermostat to that then the new receiver has a button you press a light comes on the boiler comes on press it again it goes off, but it just kept flashing I dont no if you just pull the receiver off the boiler does that cancel all the settings are do you have to do something else

 

[CBW]

Yes, just pull the receiver off, or leave it in place and the new one should override it