Hi,

I have a saunier duval system 400 boiler. Came home today and the low
pressure light was on. Did a radiator bleed and re-pressurised the
system, but the light won't go off. I'm guessing there is a reset
switch I need to hit? Does anyone know where it might be hidden? I
have no manual

Thanks.

Craig

wrote:
Hi,

I have a saunier duval system 400 boiler. Came home today and the low
pressure light was on. Did a radiator bleed and re-pressurised the
system, but the light won't go off. I'm guessing there is a reset
switch I need to hit? Does anyone know where it might be hidden? I
have no manual


No idea if you've looked he
http://www.saunier-duval.co.uk/servi...noncurrent.asp
or
http://www.saunier-duval.co.uk/servi...on_current.asp

but the one I picked (I didn't see your model) showed a little depressed
reset switch just under the red fault light....


Cheers,

william.
Thanks.

Craig

On 20 Dec, 23:14, William McNicol wrote:
wrote:
Hi,

I have a saunier duval system 400 boiler. *Came home today and the low
pressure light was on. *Did a radiator bleed and re-pressurised the
system, but the light won't go off. *I'm guessing there is a reset
switch I need to hit? *Does anyone know where it might be hidden? *I
have no manual

No idea if you've looked he
*http://www.saunier-duval.co.uk/servi...noncurrent.asp
or
*http://www.saunier-duval.co.uk/servi...on_current.asp

but the one I picked (I didn't see your model) showed a little depressed
reset switch just under the red fault light....

Cheers,

william.

Thanks.

Craig

Hi William,

is it like a plastic x-shaped rod within a plastic round, threaded
cylinder? If so, I found that, but it didn't 'press'

Craig

On 20 Dec, 23:53, wrote:
On 20 Dec, 23:14, William McNicol wrote:



wrote:
Hi,

I have a saunier duval system 400 boiler. *Came home today and the low
pressure light was on. *Did a radiator bleed and re-pressurised the
system, but the light won't go off. *I'm guessing there is a reset
switch I need to hit? *Does anyone know where it might be hidden? *I
have no manual

No idea if you've looked he
*http://www.saunier-duval.co.uk/servi...noncurrent.asp
or
*http://www.saunier-duval.co.uk/servi...on_current.asp

but the one I picked (I didn't see your model) showed a little depressed
reset switch just under the red fault light....

Cheers,

william.

Thanks.

Craig

Hi William,

is it like a plastic x-shaped rod within a plastic round, threaded
cylinder? *If so, I found that, but it didn't 'press'

Craig

Have taken a pic of the switch.

http://xs.to/xs.php?h=xs434&d=08516&..._switch127.jpg

Looks a bit mashed up so could be dodgy. As I said, I can press it
but it doesn't click.

Craig

On 21 Dec, 00:07, wrote:
On 20 Dec, 23:53, wrote:



On 20 Dec, 23:14, William McNicol wrote:

wrote:
Hi,

I have a saunier duval system 400 boiler. *Came home today and the low
pressure light was on. *Did a radiator bleed and re-pressurised the
system, but the light won't go off. *I'm guessing there is a reset
switch I need to hit? *Does anyone know where it might be hidden? *I
have no manual

No idea if you've looked he
*http://www.saunier-duval.co.uk/servi...noncurrent.asp
or
*http://www.saunier-duval.co.uk/servi...on_current.asp

but the one I picked (I didn't see your model) showed a little depressed
reset switch just under the red fault light....

Cheers,

william.

Thanks.

Craig

Hi William,

is it like a plastic x-shaped rod within a plastic round, threaded
cylinder? *If so, I found that, but it didn't 'press'

Craig

Have taken a pic of the switch.

http://xs.to/xs.php?h=xs434&d=08516&..._switch127.jpg

Looks a bit mashed up so could be dodgy. *As I said, I can press it
but it doesn't click.

Craig

D'oh, just realised it should be jutting out eh? Well, it's not, and
the low pressure light is on, even though there is just over 1.5 bar
in the system, cold. Sounds like it's engineer time.

Craig

In an earlier contribution to this discussion,
wrote:

On 20 Dec, 23:53, wrote:
On 20 Dec, 23:14, William McNicol wrote:



wrote:
Hi,

I have a saunier duval system 400 boiler. Came home today and the
low pressure light was on. Did a radiator bleed and re-pressurised
the system, but the light won't go off. I'm guessing there is a
reset switch I need to hit? Does anyone know where it might be
hidden? I have no manual No idea if you've looked he
http://www.saunier-duval.co.uk/servi...noncurrent.asp
or
http://www.saunier-duval.co.uk/servi...on_current.asp

but the one I picked (I didn't see your model) showed a little
depressed reset switch just under the red fault light....

Cheers,

william.

Thanks.

Craig

Hi William,

is it like a plastic x-shaped rod within a plastic round, threaded
cylinder? If so, I found that, but it didn't 'press'

Craig

Have taken a pic of the switch.

http://xs.to/xs.php?h=xs434&d=08516&..._switch127.jpg

Looks a bit mashed up so could be dodgy. As I said, I can press it
but it doesn't click.

Craig

That look just like the over-heat trip switch on my (different make/model)
boiler. When it trips, the central part pops out (which yours doesn't appear
to have done) and has to be pressed in again.
--
Cheers,
Roger
______
Email address maintained for newsgroup use only, and not regularly
monitored.. Messages sent to it may not be read for several weeks.
PLEASE REPLY TO NEWSGROUP!

wrote in message
...
Hi,

I have a saunier duval system 400 boiler. Came home today and the low
pressure light was on. Did a radiator bleed and re-pressurised the
system, but the light won't go off. I'm guessing there is a reset
switch I need to hit? Does anyone know where it might be hidden? I
have no manual

I assume you've tried turning the boiler mains off and on again?

Tim

On Dec 21, 1:44*pm, "Tim Downie"
wrote:
wrote in message

...

Hi,

I have a saunier duval system 400 boiler. *Came home today and the low
pressure light was on. *Did a radiator bleed and re-pressurised the
system, but the light won't go off. *I'm guessing there is a reset
switch I need to hit? *Does anyone know where it might be hidden? *I
have no manual

I assume you've tried turning the boiler mains off and on again?

Tim

Yeah, cut all power to the flat. Only left it 30 seconds though,
might try a bit longer.

Cheers.

On Dec 21, 2:01*pm, wrote:
On Dec 21, 1:44*pm, "Tim Downie"
wrote:

wrote in message

...

Hi,

I have a saunier duval system 400 boiler. *Came home today and the low
pressure light was on. *Did a radiator bleed and re-pressurised the
system, but the light won't go off. *I'm guessing there is a reset
switch I need to hit? *Does anyone know where it might be hidden? *I
have no manual

I assume you've tried turning the boiler mains off and on again?

Tim

Yeah, cut all power to the flat. *Only left it 30 seconds though,
might try a bit longer.

Cheers.

Okay, had all power off for a good ten minutes that time, still no
joy.

Craig

wrote in message
...
On Dec 21, 1:44 pm, "Tim Downie"
wrote:
wrote in message

...

Hi,

I have a saunier duval system 400 boiler. Came home today and the low
pressure light was on. Did a radiator bleed and re-pressurised the
system, but the light won't go off. I'm guessing there is a reset
switch I need to hit? Does anyone know where it might be hidden? I
have no manual

I assume you've tried turning the boiler mains off and on again?

Tim

Yeah, cut all power to the flat. Only left it 30 seconds though,
might try a bit longer.

Cheers.

wrote in message
...
On Dec 21, 2:01 pm, wrote:
On Dec 21, 1:44 pm, "Tim Downie"
wrote:

wrote in message

...

Hi,

I have a saunier duval system 400 boiler. Came home today and the low
pressure light was on. Did a radiator bleed and re-pressurised the
system, but the light won't go off. I'm guessing there is a reset
switch I need to hit? Does anyone know where it might be hidden? I
have no manual

I assume you've tried turning the boiler mains off and on again?

Tim

Yeah, cut all power to the flat. Only left it 30 seconds though,
might try a bit longer.


Well if your boiler is anything like this one
http://www.saunier-duval.co.uk/manua...on_SDsb30e.pdf
it doesn't seem it should need any sort of resetting for low pressure. It
comes down to a pressure sensor fault or a PCB problem.

Tim

In message , Roger Mills
writes
Have taken a pic of the switch.

http://xs.to/xs.php?h=xs434&d=08516&..._switch127.jpg

Looks a bit mashed up so could be dodgy. As I said, I can press it
but it doesn't click.

Craig

That look just like the over-heat trip switch on my (different make/model)
boiler. When it trips, the central part pops out (which yours doesn't appear
to have done) and has to be pressed in again.

wot e sed


--
geoff

On Dec 21, 7:09*pm, geoff wrote:
In message , Roger Mills
writes

Have taken a pic of the switch.

http://xs.to/xs.php?h=xs434&d=08516&..._switch127.jpg

Looks a bit mashed up so could be dodgy. *As I said, I can press it
but it doesn't click.

Craig

That look just like the over-heat trip switch on my (different make/model)
boiler. When it trips, the central part pops out (which yours doesn't appear
to have done) and has to be pressed in again.

wot e sed

--
geoff

yeah, but if it ain't popped, I can't press it. oh well, popper must
be busted!

hopefully got someone seeing it tomorrow. will post back results.

Thanks.

In an earlier contribution to this discussion,
wrote:

On Dec 21, 7:09 pm, geoff wrote:
In message , Roger Mills
writes

Have taken a pic of the switch.

http://xs.to/xs.php?h=xs434&d=08516&..._switch127.jpg

Looks a bit mashed up so could be dodgy. As I said, I can press it
but it doesn't click.

Craig

That look just like the over-heat trip switch on my (different
make/model) boiler. When it trips, the central part pops out (which
yours doesn't appear to have done) and has to be pressed in again.

wot e sed

--
geoff

yeah, but if it ain't popped, I can't press it. oh well, popper must
be busted!


No! It ain't popped because it's an overheat trip, and your boiler hasn't
overheated.

This button is *not* related to your pressure problem.
--
Cheers,
Roger
______
Email address maintained for newsgroup use only, and not regularly
monitored.. Messages sent to it may not be read for several weeks.
PLEASE REPLY TO NEWSGROUP!

On Dec 21, 9:13*pm, "Roger Mills" wrote:
In an earlier contribution to this discussion,



*wrote:
On Dec 21, 7:09 pm, geoff wrote:
In message , Roger Mills
writes

Have taken a pic of the switch.

http://xs.to/xs.php?h=xs434&d=08516&..._switch127.jpg

Looks a bit mashed up so could be dodgy. As I said, I can press it
but it doesn't click.

Craig

That look just like the over-heat trip switch on my (different
make/model) boiler. When it trips, the central part pops out (which
yours doesn't appear to have done) and has to be pressed in again.

wot e sed

--
geoff

yeah, but if it ain't popped, I can't press it. *oh well, popper must
be busted!

No! It ain't popped because it's an overheat trip, and your boiler hasn't
overheated.

This button is *not* related to your pressure problem.
--
Cheers,
Roger
______
Email address maintained for newsgroup use only, and not regularly
monitored.. Messages sent to it may not be read for several weeks.
PLEASE REPLY TO NEWSGROUP!

Hi Roger,

Thanks for clarifying, I thought it was a generic reset as that's how
it seems to be described in most places!

Craig

On Dec 21, 11:20*pm, wrote:
On Dec 21, 9:13*pm, "Roger Mills" wrote:



In an earlier contribution to this discussion,

*wrote:
On Dec 21, 7:09 pm, geoff wrote:
In message , Roger Mills
writes

Have taken a pic of the switch.

http://xs.to/xs.php?h=xs434&d=08516&..._switch127.jpg

Looks a bit mashed up so could be dodgy. As I said, I can press it
but it doesn't click.

Craig

That look just like the over-heat trip switch on my (different
make/model) boiler. When it trips, the central part pops out (which
yours doesn't appear to have done) and has to be pressed in again.

wot e sed

--
geoff

yeah, but if it ain't popped, I can't press it. *oh well, popper must
be busted!

No! It ain't popped because it's an overheat trip, and your boiler hasn't
overheated.

This button is *not* related to your pressure problem.
--
Cheers,
Roger
______
Email address maintained for newsgroup use only, and not regularly
monitored.. Messages sent to it may not be read for several weeks.
PLEASE REPLY TO NEWSGROUP!

Hi Roger,

Thanks for clarifying, I thought it was a generic reset as that's how
it seems to be described in most places!

Craig

I said I'd post back the result so here it is. The pressure switch
was fine. There was a blockage at the vessel leading to the switch.

Thanks all.

Craig