I have just replaced the fan again in my Gloworm Swiflo combi boiler,
this time it only lasted 3 months.
It didn't have a warranty because the previous one (three fans ago)
showed signs of damage due to the boiler overheating, fair enough, it
looked yellowed to me.
In the shop they suggested that overheating may be caused by a blocked
heat exchanger.

The fans are reconditioned and my suspicion is that the last fan was
crap, it wasn't yellowed and it was noisy almost as soon as it was
installed.

My question is, how would I know if my boiler was overheating? there
doesn't seem to be an overheating warning light. If the heat exchanger
was blocked then surely I wouldn't be getting hot water out of my tap.

Any suggestions gratefully received.

On Sat, 29 Nov 2008 04:02:20 -0800, Rednadnerb wrote:

The fans are reconditioned and my suspicion is that the last fan was
crap, it wasn't yellowed and it was noisy almost as soon as it was
installed.

Billion dollar question: was it or was it not from CET? :-)

--
John Stumbles -- http://yaph.co.uk

You'll make some woman a fine husband, Dr Frankenstein

No, it was from Adlink in Alperton.

In message , YAPH
writes
On Sat, 29 Nov 2008 04:02:20 -0800, Rednadnerb wrote:

The fans are reconditioned and my suspicion is that the last fan was
crap, it wasn't yellowed and it was noisy almost as soon as it was
installed.

Billion dollar question: was it or was it not from CET? :-)

just requesting article - hotmail gets filtered


--
geoff

In message
,
Rednadnerb writes
No, it was from Adlink in Alperton.


There you go - I don't look for excuses not to honour warranties

Use Adlink at your peril


--
geoff

On Sat, 29 Nov 2008 04:02:20 -0800, Rednadnerb wrote:

I have just replaced the fan again in my Gloworm Swiflo combi boiler,
this time it only lasted 3 months.
It didn't have a warranty because the previous one (three fans ago)
showed signs of damage due to the boiler overheating, fair enough, it
looked yellowed to me.
In the shop they suggested that overheating may be caused by a blocked
heat exchanger.

The fans are reconditioned and my suspicion is that the last fan was
crap, it wasn't yellowed and it was noisy almost as soon as it was
installed.

My question is, how would I know if my boiler was overheating? there
doesn't seem to be an overheating warning light. If the heat exchanger
was blocked then surely I wouldn't be getting hot water out of my tap.

Any suggestions gratefully received.

Whether or not the fan came from a trustworthy source or not, the fact
that it failed so soon should make you think there may be an underlying
reason.

1) Check burner pressure and gas rate (see gas fitting FAQ)
2) Check for partially obstructed airways, anything from plants in the air
intake to crud on the burner side of the main heatX, or even a melted flue
where some idiot has used the wrong flue components.

The reverse process of a poor fan (but which still manages to trigger the
APS) can cause substantial damage to a boiler, but that assumes the bad
fan is the cause not the symptom.










--
Ed Sirett - Property maintainer and registered gas fitter.
The FAQ for uk.diy is at http://www.diyfaq.org.uk
Gas fitting FAQ http://www.makewrite.demon.co.uk/GasFitting.html
Sealed CH FAQ http://www.makewrite.demon.co.uk/SealedCH.html
Choosing a Boiler FAQ http://www.makewrite.demon.co.uk/BoilerChoice.html