"Ed Sirett" wrote in message
...
On Wed, 07 Feb 2007 19:31:07 +0000, pp wrote:

Hi
I have a Baxi Duo-tec HE24 condensing boiler fitted in September and
lately
it has shut itself down for no apparent reason and shows error code E125.
I
try to reset it but this doesn't usually work and instead I have to
switch
off the boiler and turn it on again before it'll work. It's been
happening
more frequently lately and although it's still under warranty I was
hoping
that someone can give me an idea of what's the problem before I call out
the
installer. According to the users book it says the error code 125 may be
due
to a fault in the primary circulation or due to a blockage.

What does the installer book say (it is actually a legal requirement to
leave you the book). I'm guessing, but that code is probably over-heat?

So maybe problems like:
No bypass. All TRVs shutdown in. Faulty sensor. Faulty pump.


The installer book says "error 125 flashing - Ensure primary circulation
is OK & that there is no blockage"

Phil