HI,

We have the Glow worm HXI, the problem I am expericing is that when the
boiler is switched on there is a rapid temperature rise then the boiler cuts
out with an error code F1. Ignition problems in the fault finding code.

We had this problem before and the overheat stat had to be reset.

"Hello" wrote:
HI,
We have the Glow worm HXI, the problem I am expericing is that when the
boiler is switched on there is a rapid temperature rise then the boiler
cuts out with an error code F1. Ignition problems in the fault finding
code.

We had this problem before and the overheat stat had to be reset.

Is there a prize for the first correct guess for what you mean?

Hello wrote:
HI,

We have the Glow worm HXI, the problem I am expericing is that when the
boiler is switched on there is a rapid temperature rise then the boiler cuts
out with an error code F1. Ignition problems in the fault finding code.

We had this problem before and the overheat stat had to be reset.

Odd you should post this. I've just had a similar problem with my 18Hxi.
After performing perfectly for just over a year, it started making loud
banging noises. Following that, the temperature would rise rapidly on
start often resulting in a F26 or F14 error before it cut out.
Eventually an F5 lockout (overheat stat tripped) would happen. I called
out Glow-worm who replaced the heat exchanger - it was full of sludge.
This was done under warranty (I had to pay a substantial call-out
charge, but the parts were free), which was very good of them
considering it wasn't really their fault.

The sludge was a brown colour and looked like copper (flakes and
particles), not iron (it wasn't attracted to a magnet, before you ask).
I suspect the source of this is the Albion Mainsflow Direct thermal
store the boiler's attached to. I've since cleaned out the store, and
it's currently running with some Sentinel X400 to thoroughly clean it
out (I'll flush this out and put inhibitor back in a few days).

I've bought a Y strainer to install, but this will obviously need
checking/cleaning regularly and will only catch larger particles in the
stainless mesh.

Does anyone have any ideas on the cause of this copper sludge (BTW I did
use Fernox MB1), or how I can prevent it fouling the boiler/rads? I've
done a Google for hydrocyclone separators, but these don't seem to be
available for domestic use, and obviously a "Boiler Buddy" or
"Magnaclean" isn't going to help much...

But enough of me, back to the OP: If the boiler is still under warranty,
give Glow-worm a call. But you might want to check for a blockage in
your pipework (or the flue for that matter, if the boiler won't stay
lit) first.

-Antony.

In message , Hello
writes
HI,

We have the Glow worm HXI, the problem I am expericing is that when the
boiler is switched on there is a rapid temperature rise then the boiler cuts
out with an error code F1. Ignition problems in the fault finding code.


We had this problem before and the overheat stat had to be reset.



For whatever reason, pump not circulating properly, a blockage
somewhere, water is not circulating properly

If you think about it, this would explain all your symptoms (water is
not getting out of the heat exchanger quickly enough)

the "why" is what you have to find out

--
geoff

Thank you for your response, I will check out the pump.
"raden" wrote in message
...
In message , Hello
writes
HI,

We have the Glow worm HXI, the problem I am expericing is that when the
boiler is switched on there is a rapid temperature rise then the boiler
cuts
out with an error code F1. Ignition problems in the fault finding code.


We had this problem before and the overheat stat had to be reset.



For whatever reason, pump not circulating properly, a blockage somewhere,
water is not circulating properly

If you think about it, this would explain all your symptoms (water is not
getting out of the heat exchanger quickly enough)

the "why" is what you have to find out

--
geoff

Thank you very much Anthony, will check the warranty out.

"Antony Jones" wrote in message
...
Hello wrote:
HI,

We have the Glow worm HXI, the problem I am expericing is that when the
boiler is switched on there is a rapid temperature rise then the boiler
cuts out with an error code F1. Ignition problems in the fault finding
code.

We had this problem before and the overheat stat had to be reset.

Odd you should post this. I've just had a similar problem with my 18Hxi.
After performing perfectly for just over a year, it started making loud
banging noises. Following that, the temperature would rise rapidly on
start often resulting in a F26 or F14 error before it cut out. Eventually
an F5 lockout (overheat stat tripped) would happen. I called out Glow-worm
who replaced the heat exchanger - it was full of sludge. This was done
under warranty (I had to pay a substantial call-out charge, but the parts
were free), which was very good of them considering it wasn't really their
fault.

The sludge was a brown colour and looked like copper (flakes and
particles), not iron (it wasn't attracted to a magnet, before you ask). I
suspect the source of this is the Albion Mainsflow Direct thermal store
the boiler's attached to. I've since cleaned out the store, and it's
currently running with some Sentinel X400 to thoroughly clean it out (I'll
flush this out and put inhibitor back in a few days).

I've bought a Y strainer to install, but this will obviously need
checking/cleaning regularly and will only catch larger particles in the
stainless mesh.

Does anyone have any ideas on the cause of this copper sludge (BTW I did
use Fernox MB1), or how I can prevent it fouling the boiler/rads? I've
done a Google for hydrocyclone separators, but these don't seem to be
available for domestic use, and obviously a "Boiler Buddy" or "Magnaclean"
isn't going to help much...

But enough of me, back to the OP: If the boiler is still under warranty,
give Glow-worm a call. But you might want to check for a blockage in your
pipework (or the flue for that matter, if the boiler won't stay lit)
first.

-Antony.