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Vaillant Boiler?

I have a Vaillant Boiler that keps coming on when I have programmed it not too.
Only comes on for a few seconds, Why?
Regards

Chas Beale
March 2009
VaillantHeating, Home Heating Systems
if it only happens once aday it will be the pas setting (pump anti seziure)

dazza p
March 2009
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Vaillant VCW-Sine18 T3WFH Lights but then goes off after 5 Min?
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Hot water comes and goes!?
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vaillant ecoTEC plus boiler fault code - how to fix?
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Vaillant ecotec 831 plus?
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how to fix water pressure its down at bottom of grey part?
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Vaillant F22 fault?
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Vaillant condensing boiler ecoTEC plus?
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Vaillant eco plus 531 boiler?
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how do I rectify the fault as detailed below?

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Vaillant ecoTEC 831 Plus

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