home Fix label Heating label_important Home Heating Systems category Vaillant

I have a Vaillant thermo compact plus 628E ?

Please can any one advise me on what I can do with a F23 fault on the boiler.
Done flush and changed the pump!!!
Please please.
It comes on/off then after with fault code F23

Pj, June 2013

home Fix label Heating label_important Home Heating Systems category Vaillantdone

blockage is system need power flush ,or add cleaning agent in system F23 pump out put is too low also clean NTC

ltd, June 2013

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home Fix label Heating label_important Home Heating Systems category Vaillant

I have a Vaillant thermo compact plus 628E ?

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I have a Vaillant thermo compact plus 628E ?

I can answer this question ...

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