Vaillant - despite the temperature set on the controller, the stove heats up?

Hello, I have such a problem that despite the set temperature on the controller 20 degrees - the stove continues to heat the rooms up to 22 degrees (and the radiators burn). This was the case even today, despite the outside temperature of 19 degrees.

The Vaillant ecoTEC plus VC 186 / 3-5 stove, so far I do not use it to heat water.

I am asking for advice

Zajaccc is it a newly installed boiler? Could it have worked properly before and the case you are writing about can be treated as a fault?

previously it worked properly, I have it 3 years this year it has been acting like this for about a week

Everything is from then? You haven't changed anything? In the sense of replacing the driver. It is simply about anything that could have anything to do with the current behavior of the boiler.

The only thing I changed was the batteries in the controller and I turned off some radiators, but that's already in January. :>

Check the outside temperature sensor. It is possible that it has been damaged and the controller sees a negative temperature outside.

What is the driver? Because it may have happened that, if it is an auraton, one of the switches accidentally changed its position.

Vaillant 392f driver

and where do I have the outside temperature sensor ??

A cursory reading of the instructions shows that it has radio control. So maybe check if the receiver has stopped seeing the transmitter after replacing the battery.

after replacing the battery, the controller and the furnace can still see each other, the furnace heats normally as planned on the controller to a set temperature of -20 degrees. And sometimes it still heats up to 23 or even 24 degrees.

Hello,
I had the same problem yesterday (the same stove ...)
It all started with the fact that we set up the "days away from home planning" program with the set temperature of 18 degrees. We came back a day earlier than planned and, to our surprise, the house was very warm - 21.5 degrees and the radiators were hot! of course, "active vacation" with a preset temperature of 18 degrees is displayed on the controller all the time !! I turned off the program; temperature set on the controller-day-20 degrees, at home it was 22 degrees and the stove is still working and the heaters are hot, it stopped heating only when I changed the time program for the night ...

At this point, the set temperature is 18 degrees, and the house is 20 degrees Celsius and the stove is still working, the heaters are hot ...

I would like to add that so far everything was fine (we have a stove for about 1.5 years), I have not changed any settings, what could be the reason for this action ??

Hello. What brand and model of the room programmer is installed in your installation? When was the last time the batteries were replaced? This is an important issue because too weak batteries in the controller may cause its incorrect operation, since the boiler has been operating for 1.5 years and the room controller has been in operation for as long, it is worth replacing these batteries with new ones because, as a rule, after such a time they are already exhausted and good is to buy batteries a bit more expensive, the good quality ones because the cheapest 'tesco' brands are usually only for the short term.

After the summer period, I put on the same batteries that were installed this spring and everything is fine. Looks like it's not the battery's fault

I repeat the question because it has recently become warm and the stove has started to heat up despite the set temperature ??

And so you will repeat the question every year and a half?

greg-orius wrote:

I have this problem too. Vailant Aqua Plus oven. It heats all the time despite the temperature on the controller 20stC at home is 24stC. Vc410 driver. I noticed that the external temperature is 12stC on the stove and 0stC on the weather controller. And one more thing - I do not know how it was before, but d90, i.e. communication with the weather controller, indicates 0, i.e. no.
Please help.

If 410 is in the boiler, it does not match the room temperature.
If the 410 is indoors, it implements the room temperature influence.
Set the right knob under the flap to the "key" then press the left knob x2 to the TP-connectors function, there are options 0,1,2.
0 - sensor disabled
1 - correction
2 - thermostat
In d90 it should be "1" check terminal "7" in the base of the regulator or on the boiler plate. Maybe one wire is damaged? Can be checked with a meter.
Check that the polarity of wires 7-8-9 is correct in the base and the boiler plate.
Write what you have set

Did you know 410 is a weather regulator?
Do you have an external sensor?

On-board sensor


Personally, I am not a supporter of the weather regulator for this boiler.
You can install the Vaillant calorMatic 332 controller or, for example, Euroster, Salus, Tybox

Sorry that such a stupid question. And does the boiler "briefly" start? After connecting the wires after unplugging the controller ...

Ooops, I have not read that it turns on and does not want to turn off .... Sorry.

greg-orius , not easier to first disconnect the controller and check manually if it's all hula?

Not sure if this setup worked properly before?
Maybe something has happened to change the settings and you only need to fix it.

You tried