home Fix label Heating label_important Home Heating Systems category Vaillant

what does f.22 means on a vaillant boiler?

on my vaillant boiler f.22 appears what does it mean pls and the hot water gets cold once this appears f.22

johnny, January 2009

home Fix label Heating label_important Home Heating Systems category Vaillantdone

can be a number of things but most likely low water pressure in system, can be confirmed by pressure gauge on front of boiler, too low if below green band.

tojo, February 2009

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home Fix label Heating label_important Home Heating Systems category Vaillant

what does f.22 means on a vaillant boiler?

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what does f.22 means on a vaillant boiler?

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what does f.22 means on a vaillant boiler?

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