Her Indoors has remarked that our new Worcester Bosch 24i Junior has a very
high pitched fan noise and, now she mentions it, it is a pretty annoying
sound. Not noisy as such, but the kind of penetrating hum that does your
head in after a while. Seems to be most noticeable in its post shutdown mode
when it presumably runs the fan to expel any lingering fumes.
Pretty certain it's nothing to do with vibration from the flue or the case.
Anybody else experienced this?
TIA