What does the bottom icon, below the spanner, look like to you?
Anyone else see a Gent with a Top Hat carrying a ladder?
It's on a Worcester Bosch 35CDi
According to the manuals it's the 'Central Heating Boost Button', but
unfortunately they don't say what it does.
Don't be silly, it's clearly the chimney cleaner button. Pressing it
injects gas into the out pipe. This is followed by a microprocessor
controlled spark initiation sequence which initiates a hyper
conductive event and by DNA replication (as seen on CSI) instantly
cleanses the exhaust orifice of all waste matter (except where such
an event is prohibited by local ordinance and social acceptability).
As you undoubtedly live in a non-approved area the inbuilt position
sensing module has disabled the feature to ensure your continued well
It's actually officially referred to as the "chimney sweep button" in
the manuals on the Bosch Greenstar range. Not really a user control
as such but used in combination with others to enter the service mode.
Sorry, John, my post was only in reference to the Bosch Greenstars
that I am more familiar with, I assumed that the button would be
generic across the entire range. I just had a quick look again and on
the W-B models with the Bosch Heatronic controller such as the
Greenstars the button doesn't provide any boost.
On Tue, 17 Oct 2006 20:31:11 +0000, John Stumbles wrote:
This is the euroglyphic for testmode. I'm surprised you've not seen it
before, do they have no Vaillant suppliers on your patch?
You'll find this on a number of models. I'm fairly sure that you
hold it in for a number of seconds and then the boiler goes flat out for
a period of time or until something is about to overheat.
Ed Sirett - Property maintainer and registered gas fitter.
The FAQ for uk.diy is at http://www.diyfaq.org.uk
On Tue, 17 Oct 2006 23:21:49 +0100, Ed Sirett
Nice to see the EU following its long established tradition of
clarity and understandability when it comes to such things.
Test mode = anorexic man carrying ladder while wearing top hat -
On Tue, 17 Oct 2006 23:21:49 +0100, Ed Sirett wrote:
Sounds like you're talking about the spanner one - the other W-Bs I've put
in recently (i-junior & variants) all have this and as you say if you hold
it in for 10s or so it goes into full-bore mode. I'm not sure I'd put an
engineer-mode button on the front panel, least of all amongst user
controls, but I fear W-B have rather lost the plot (or their engineers
have lost out to pointy-haired managers & 'designers') when it comes to
user interface design.
1. take the 'Eco' button, which switches OFF the DHW pre-heat. It'd be
more logical (IMHO) to have a button to switch this ON, but 'eco'
obviously has more cachet (to a certain mindset) so you now have a switch
which you switch ON to turn OFF a function. If they really wanted to be
'eco' (and were prepared to spend a minute amount of money on it rather
than just choose a trendy label) they could have made the pre-heat
controllable by a timer.
2. Worse, they even have this (now redundant) control on the non-combi
version (12i or 24i System).
3. all the LEDs are so pastel-hued you can't actually
see them unless it's pretty dim in the room.
Indeed, not to mention the waste of energy (however small, it's the
principle) for that little green lamp
If they really wanted to be
Tis on my 24jnr. the Hot Water part of the dual channel timer controls
eco mode. Not that I've found the pre-heat any use. At best you get,
cold from the dead leg of pipework, then a slug of hot that was sitting
in the boiler, then another shot of cold while it starts up. Unless used
very recently, in which case the pre heat isn't needed
? I find the blue (very 'in' these days it would seem) on-light (reminds
me of the flame window of an old Ascot) a pretty effective night light.
Yes, mine (MAN Micromat) has this as well.
It's used when adjusting the settings on the gas valve during
commissioning - it can be pressed and then the fan speed wound up to
the top and down to the bottom while CO2 levels are measured.
To be used by femaoles only. It gives the heating a boost to raise the
temperature so you can lie naked on the bed and wait for Robin
Askwith to come along.
 http://www.imdb.com/title/tt0071357 /
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