Valliant eco TEC 624 - F.22 error

[WoofDog12]

Hello all

I've been reading up on the F.22 error message on combi boilers but as mine is the eco TEC 624 - the simple fix doesn't seem to work. Where the grey knobs should be under the boiler there are none. Below is what I see.

Does anyone know if I can fix a F.22 error message (need to increase the water pressure) on my boiler as it is not combi or do I need to get a plumber over?

Thanks so much all

 

[jeff the gasman]

Time to look for a filling loop.
Could be hidden somewhere under the boiler in a cupboard or in your airing cupboard.
It will have a silver braided flexible hose attached.