Disabling Vaillant outdoor sensor?

[morten]

Hi!
Can one disable the outdoor sensor completely with a Vaillant VRC470f system? Right now I have the problem that my temperature reading is "stuck" on 21 degrees - a reading that the sensor just managed to make after I had tried to charge it in front of a window all day (it is broken, I will be getting a replacement today or tomorrow)...my problem is now that the stupid system thinks it is 21 degrees outside, so it refuses to turn on the heating

Thanks!
Morten

 

[ScottishGasMan]

If its getting thrown out you can break it open and remove the two capacitors that power it. Or drive it out of range and put it in a bin.

 

[morten]

If its getting thrown out you can break it open and remove the two capacitors that power it. Or drive it out of range and put it in a bin.

Ok, thanks...but the signal strength already says 0 on the controller, so I don't think it will make much difference. What I am thinking about it setting the controller in a mode where it does not use the outdoor temp at all, but I can just manually set the temperature?

 

[ScottishGasMan]

On the controller Menu->Installer level->000->System configuration-> Scroll to Heating1 Max Limit outs.temp and change that setting to 30. Then on same menu below that take a note what the heating curve is set to, change it to 4 and ok it.

You cant tell it to ignore outside sensor but this will allow heat to run and make it put a higher temp into rads, but you will need to go in and turn the heat curve back down to the as found setting once the new one is fitted.

(FYI I'm remembering this off the VRC700 control, the 470 was older but pretty similar so should be the same settings to get to)

 

[morten]

On the controller Menu->Installer level->000->System configuration-> Scroll to Heating1 Max Limit outs.temp and change that setting to 30. Then on same menu below that take a note what the heating curve is set to, change it to 4 and ok it.

You cant tell it to ignore outside sensor but this will allow heat to run and make it put a higher temp into rads, but you will need to go in and turn the heat curve back down to the as found setting once the new one is fitted.

(FYI I'm remembering this off the VRC700 control, the 470 was older but pretty similar so should be the same settings to get to)

Thank you! I will try that!

EDIT: hm, unfortunately, it seems I do not have that setting...:-/

EDIT 2: found it! It was called something about min temp...and now I've got some heating again...thank you!