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home Fix label Heating label_important Home Heating Systems category Vaillant

how can i fix vaillant ecomax combination boiler?

i have no hot water or heating the fault shows numbers f21 34 25 50 48
corrigan.m, October 2009
home Fix label Heating label_important Home Heating Systems category Vaillantdone
hi i have an Vaillant ecomax 613e and it is showing code F21 please can you tell me what this code means.

Hamid, December 2009
hi, i have an Vaillant Boiler ecomax 613e and it is showing code number F21 plase can you tell me what this code means.

Thanks

Imran, December 2009
link Click here to see other fixes for Vaillant.

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