Boiler Pressure...
 

I have a Glow worm swift flow, the problem is when the boiler is off, the
pressure drops quite dramtically there is NO visual evidence of any leaks,
then when the boiler is switched on the pressure can in crease to as much as
3bar, one radiator upstairs never comes on, despite being bled and water
coming out, both pipes never to radiator never get warm.

What do you think.

Boiler Pressure...
 

"Tony." g wrote in message ...
I have a Glow worm swift flow, the problem is when the boiler is off, the
pressure drops quite dramtically there is NO visual evidence of any leaks,
then when the boiler is switched on the pressure can in crease to as much
as 3bar, one radiator upstairs never comes on, despite being bled and water
coming out, both pipes never to radiator never get warm.

What do you think.

You expansion vessel has lost its charge, hence, when your boiler is on, the
water heats and expands, and without its expansion vessel to absorb the
expansion the pressure will rocket to 3 bar whereon the pressure relief
valve will dump water outside. When the boiler goes off the pressure gauge
will be low due to the water lost outside.

You need to recharge the expansion vessel, if it is split you need a new one
(either replacing the existing one on the boiler or installing an
appropriately sized one external to the boiler.

Angus

Boiler Pressure...
 

I have a Glow worm swift flow, the problem is when the boiler is off, the
pressure drops quite dramtically there is NO visual evidence of any leaks,
then when the boiler is switched on the pressure can in crease to as much as
3bar, one radiator upstairs never comes on, despite being bled and water
coming out, both pipes never to radiator never get warm.
What do you think.

Not a plumber etc.

Sounds like the pressure vessel is knackered.

Boiler Pressure...
 

In message , Tony. writes
I have a Glow worm swift flow, the problem is when the boiler is off, the
pressure drops quite dramtically there is NO visual evidence of any leaks,
then when the boiler is switched on the pressure can in crease to as much as
3bar, one radiator upstairs never comes on, despite being bled and water
coming out, both pipes never to radiator never get warm.

What do you think.

Expansion vessel isn't pressurised

--
geoff

Boiler Pressure...
 

Thanks for response,

But the pressure relief vavle pipe is as dry as a bone, there is definitely
no water leaking from there


"raden" wrote in message
...
In message , Tony. writes
I have a Glow worm swift flow, the problem is when the boiler is off, the
pressure drops quite dramtically there is NO visual evidence of any leaks,
then when the boiler is switched on the pressure can in crease to as much
as
3bar, one radiator upstairs never comes on, despite being bled and water
coming out, both pipes never to radiator never get warm.

What do you think.

Expansion vessel isn't pressurised

--
geoff

Boiler Pressure...
 

In message , Tony. writes
Thanks for response,

But the pressure relief vavle pipe is as dry as a bone, there is definitely
no water leaking from there


"raden" wrote in message
...
In message , Tony. writes
I have a Glow worm swift flow, the problem is when the boiler is off, the
pressure drops quite dramtically there is NO visual evidence of any leaks,
then when the boiler is switched on the pressure can in crease to as much
as
3bar, one radiator upstairs never comes on, despite being bled and water
coming out, both pipes never to radiator never get warm.

What do you think.

Expansion vessel isn't pressurised

Don't top post if you want meaningful replies ...

Who said anything about the pressure relief valve, the pressure vessel
is normally at the back of the boiler and absorbs the increased
pressure as the temperature rises


--
geoff

Boiler Pressure...
 

"raden" wrote in message
...
In message , Tony. writes
Thanks for response,

But the pressure relief vavle pipe is as dry as a bone, there is
definitely
no water leaking from there


"raden" wrote in message
...
In message , Tony. writes
I have a Glow worm swift flow, the problem is when the boiler is off,
the
pressure drops quite dramtically there is NO visual evidence of any
leaks,
then when the boiler is switched on the pressure can in crease to as
much
as
3bar, one radiator upstairs never comes on, despite being bled and water
coming out, both pipes never to radiator never get warm.

What do you think.

Expansion vessel isn't pressurised

Don't top post if you want meaningful replies ...

Who said anything about the pressure relief valve, the pressure vessel is
normally at the back of the boiler and absorbs the increased pressure as
the temperature rises


--
geoff

Well if you dont top post you wont see who i was replying too,

Fenboozler, remarked that water would be released frpn
m the pressure relief vavle when cooling.,

Boiler Pressure...
 

"Tony." g wrote in message ...

"raden" wrote in message
...
In message , Tony. writes
Thanks for response,

But the pressure relief vavle pipe is as dry as a bone, there is
definitely
no water leaking from there


"raden" wrote in message
...
In message , Tony. writes
I have a Glow worm swift flow, the problem is when the boiler is off,
the
pressure drops quite dramtically there is NO visual evidence of any
leaks,
then when the boiler is switched on the pressure can in crease to as
much
as
3bar, one radiator upstairs never comes on, despite being bled and
water
coming out, both pipes never to radiator never get warm.

What do you think.

Expansion vessel isn't pressurised

Don't top post if you want meaningful replies ...

Who said anything about the pressure relief valve, the pressure vessel is
normally at the back of the boiler and absorbs the increased pressure as
the temperature rises


--
geoff

Well if you dont top post you wont see who i was replying too,

Fenboozler, remarked that water would be released frpn
m the pressure relief vavle when cooling.,

The water released through the pressure relief valve probably only happened
once. If you increased your pressure when the system is cool to 1bar, then
I bet it would release water again when hot.

Angus

Boiler Pressure...
 

In message , Tony. writes

"raden" wrote in message
...
In message , Tony. writes
Thanks for response,

But the pressure relief vavle pipe is as dry as a bone, there is
definitely
no water leaking from there


"raden" wrote in message
...
In message , Tony. writes
I have a Glow worm swift flow, the problem is when the boiler is off,
the
pressure drops quite dramtically there is NO visual evidence of any
leaks,
then when the boiler is switched on the pressure can in crease to as
much
as
3bar, one radiator upstairs never comes on, despite being bled and water
coming out, both pipes never to radiator never get warm.

What do you think.

Expansion vessel isn't pressurised

Don't top post if you want meaningful replies ...

Who said anything about the pressure relief valve, the pressure vessel is
normally at the back of the boiler and absorbs the increased pressure as
the temperature rises


--
geoff

Well if you dont top post you wont see who i was replying too,

Fenboozler, remarked that water would be released frpn
m the pressure relief vavle when cooling.,


Bye then ...


--
geoff

Boiler Pressure...
 

raden wrote:
In message , Tony. writes
Well if you dont top post you wont see who i was replying too,

Fenboozler, remarked that water would be released frpn
m the pressure relief vavle when cooling.,
Bye then ...

What an abortion of a post. Tony. will be lucky
to get anything except what he deserves.