Hi all
Can anyone help with any information regarding non return flap in fan of vitoden 100 i have been on to Tech and they said check this flap, i'm not familar with this make of boiler and there doesn't seem to be any information in Mi
Can anyone help with any information regarding non return flap in fan of vitoden 100 i have been on to Tech and they said check this flap, i'm not familar with this make of boiler and there doesn't seem to be any information in Mi