Hi,

I have a gas heated 2 story house. The boiler works by electronic
timer that divides the house into an upstairs and downstairs with a
button for each. All was working well but now only the upstairs
heating is working.

When i hit the boost button for upstairs the boiler kicks in (ie the
flame comes on and it starts making some noise as always).
Newbie...sorry. If i then stop the boost button for upstairs and let
the boiler stop...then hit the boost button for downstairs the boiler
doesnt kick in. The electronic timer looks fine as in the light comes
on etc..

NB There is pressure in the pressure reader on the boiler as obviously
upstairs works fine.

Thanks...

On 22 Feb, 22:14, kieran5405 wrote:
Hi,

I have a gas heated 2 story house. The boiler works by electronic
timer that divides the house into an upstairs and downstairs with a
button for each. All was working well but now only the upstairs
heating is working.

When i hit the boost button for upstairs the boiler kicks in (ie the
flame comes on and it starts making some noise as always).
Newbie...sorry. If i then stop the boost button for upstairs and let
the boiler stop...then hit the boost button for downstairs the boiler
doesnt kick in. The electronic timer looks fine as in the light comes
on etc..

NB There is pressure in the pressure reader on the boiler as obviously
upstairs works fine.

Thanks...

Your system is most likely separated with 2 two port valves, the one
which regulates the downstairs might have stuck.

On the 2 port valve there is a little lever on the side, try pushing
this to manual position and see if it works.The heating won't cut off
though if it is left in the manual position.

http://www.ridgeonsukstoreonline.com...H1800067_m.jpg

cheers for that.

but i cant seem to see something like you mentioned.

where would this usually be...would it be beside the boiler
downstairs??

In case this is of any use...the gas system boiler is a Vokera Mynute
16e...i.e. this is a large white box which has the pressure guage on
it. Would the regulator be inside the box...theres a panel you can
screw off. I cant seem to see anything else around the box/boiler
that would do anything.

Thanks...

Hi,

After more examination, I found the plumping valve for downstairs
(myson power extra mpe222). I found the manual override switch on the
side and when i moved this to the manual position...then the
downstairs radiators stated to heat up.

Does this mean that the myson unit just needs to be replaced...or can
it be an indication of some other problem. How long do these units
usually last...the house is about 4 years old.

Thanks...

kieran5405 wrote:


After more examination, I found the plumping valve for downstairs
(myson power extra mpe222). I found the manual override switch on the
side and when i moved this to the manual position...then the
downstairs radiators stated to heat up.

Does this mean that the myson unit just needs to be replaced...or can
it be an indication of some other problem. How long do these units
usually last...the house is about 4 years old.


Do you have the necessary knowledge and equipment to check whether power
is getting to the valve? If you can confirm that it's getting power
when it should, then I believe the actuator can be removed without
disturbing the wet side at all, and you can then either have a go at
repairing it or replace it. Google "myson mpe222 actuator" and you'll
find a supplier. It may use even use a common type of synchronous motor
as sold, for instance, by Screwfix.


--
Kevin Poole
****Use current date to reply (e.g. )****

In an earlier contribution to this discussion,
kieran5405 wrote:

Hi,

After more examination, I found the plumping valve for downstairs
(myson power extra mpe222). I found the manual override switch on the
side and when i moved this to the manual position...then the
downstairs radiators stated to heat up.

Does this mean that the myson unit just needs to be replaced...or can
it be an indication of some other problem. How long do these units
usually last...the house is about 4 years old.

Thanks...

The way these things work is that the timer and room stat open the valve
and, once the valve is open, auxilliary contacts in the valve actuator close
and tell the boiler to fire.

For some reason your valve isn't opening when it should. There are lots of
possible causes for this, and some investigation is required in order to
find the actual cause. The most likely causes are a failed motor in the
actuator or the 'wet' part of the valve partially seizing - making it too
stiff for the (not very powerful) actualtor motor to move. Other possible
causes are a failed room stat or a discontinuity in the wiring between
timer/stat/valve.

When you operated the over-ride, did the downstairs radiators get warm
*without* the upsdtairs ones being on, or only when they were on?
--
Cheers,
Roger
______
Email address maintained for newsgroup use only, and not regularly
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On 23 Feb, 10:36, kieran5405 wrote:
Hi,

After more examination, I found the plumping valve for downstairs
(myson power extra mpe222). I found the manual override switch on the
side and when i moved this to the manual position...then the
downstairs radiators stated to heat up.

Does this mean that the myson unit just needs to be replaced...or can
it be an indication of some other problem. How long do these units
usually last...the house is about 4 years old.

Thanks...

Sorry for making you discover the valves yourself.... I went to sleep.

kieran5405 wrote:
In case this is of any use...the gas system boiler is a Vokera Mynute
16e...i.e. this is a large white box which has the pressure guage on
it. Would the regulator be inside the box...theres a panel you can
screw off. I cant seem to see anything else around the box/boiler
that would do anything.

The valves are not going to be in the boiler. They are often placed in
airing cupboards, or perhaps in the loft space. How is your hot water
heated? If that is also heated by the boiler then there will probably be
a zone valve controlling that as well.

--
Cheers,

John.

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