Vaillant ecoTEC plus 824 - water fine, no heating

6 Oct 2010
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United Kingdom

I've recently moved into a new place with an Vaillant ecoTEC plus 824, which has been providing me with hot water perfectly over the past 2 months. Now its time to turn on the central heating and I'm not getting anywhere. With the dial in either 'ON' or 'TIMER', nothing is happening- no radiator symbol on the display, no heat in the radiators, no sound from the boiler. I've tried changing the temperature- pushing it even to the maximum makes no difference.

The water is on the Warmstart system.

Am I doing something wrong, do I need to call somebody out?

Thanks for the help- much appreciated.

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when you turn the heating knob does the numbers change on the display?
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YES! :rolleyes:

I had totally forgotten about its existence (new flat easily done!)

I just moved it from zero and the boiler kicked into life...along with the radiator symbol on the display.

A million thank you's!
hi, I have the same problem except my thermostat is set to 30 degrees and nothing!

it says the room temp is 27 so I set it to 30 so it should decide to turn on the radiators to give me the extra heat right?

no radiator symbol & no heat & my poor little baby is getting cold at night now.

Any ideas would be greatly appreciated
Have you set your boiler to the water AND heating position???


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