Hi

A Honeywell V4043H1056 2-port motorised valve in our CH system has
stuck. I suspect that the synchronous motor has failed.

A replacement Honeywell motor seems to cost around £25. Screwfix do a
Drayton motor for around £13 (page 420 of Spring 2010 catalogue),
which is supposed to fit many valves.

Please can anyone advise whether the Drayton motor is suitable for
this Honeywell valve?

I did see a post on another forum ('diybanter') that stated:

"Change the motor (for Honeywell, they recommend you get a Honeywell
motor as it they are more robust as their valves can remain open (i.e.
powered) to CH if that was the last demand, even if demand has now
ceased, therefore more wear on the motor)."

Is this really true? I would have thought that a microswitch would
stop the motor when it has reached position.

Best regards

David

"DavidA" wrote in message
...
Hi

A Honeywell V4043H1056 2-port motorised valve in our CH system has
stuck. I suspect that the synchronous motor has failed.

A replacement Honeywell motor seems to cost around £25. Screwfix do a
Drayton motor for around £13 (page 420 of Spring 2010 catalogue),
which is supposed to fit many valves.

Please can anyone advise whether the Drayton motor is suitable for
this Honeywell valve?

I did see a post on another forum ('diybanter') that stated:

"Change the motor (for Honeywell, they recommend you get a Honeywell
motor as it they are more robust as their valves can remain open (i.e.
powered) to CH if that was the last demand, even if demand has now
ceased, therefore more wear on the motor)."

Is this really true? I would have thought that a microswitch would
stop the motor when it has reached position.

Best regards

David

BES http://www.bes.co.uk/products/112.asp

About a tenner delivered.

It worked for me

"DavidA" wrote in message
...
Hi

A Honeywell V4043H1056 2-port motorised valve in our CH system has
stuck. I suspect that the synchronous motor has failed.

A replacement Honeywell motor seems to cost around £25. Screwfix do a
Drayton motor for around £13 (page 420 of Spring 2010 catalogue),
which is supposed to fit many valves.

Please can anyone advise whether the Drayton motor is suitable for
this Honeywell valve?

I did see a post on another forum ('diybanter') that stated:

"Change the motor (for Honeywell, they recommend you get a Honeywell
motor as it they are more robust as their valves can remain open (i.e.
powered) to CH if that was the last demand, even if demand has now
ceased, therefore more wear on the motor)."

Is this really true? I would have thought that a microswitch would
stop the motor when it has reached position.

Best regards

David

Ah, scarcely a week goes past without motorised valve woes. On past form I
would make sure it really is the motor that has blown, before splashing out.
The microswitches are usually the first to go, though it's usually the
3-port valve we hear about.

S

On Sat, 21 Aug 2010 23:17:33 +0100 Spamlet wrote :
"Change the motor (for Honeywell, they recommend you get a Honeywell
motor as it they are more robust as their valves can remain open (i.e.
powered) to CH if that was the last demand, even if demand has now
ceased, therefore more wear on the motor)."

Is this really true? I would have thought that a microswitch would
stop the motor when it has reached position.

No, two port valves are spring loaded to close. When power is applied to
the motor the valve opens; when it reaches the limit stop the motor
stalls. The microswitch in the MV is to switch the boiler on and off

--
Tony Bryer, Greentram: 'Software to build on' Melbourne, Australia
www.superbeam.co.uk www.eurobeam.co.uk www.greentram.com

"DavidA" wrote in message ...
Hi

A Honeywell V4043H1056 2-port motorised valve in our CH system has
stuck. I suspect that the synchronous motor has failed.

A replacement Honeywell motor seems to cost around £25. Screwfix do a
Drayton motor for around £13 (page 420 of Spring 2010 catalogue),
which is supposed to fit many valves.

Please can anyone advise whether the Drayton motor is suitable for
this Honeywell valve?

I did see a post on another forum ('diybanter') that stated:

"Change the motor (for Honeywell, they recommend you get a Honeywell
motor as it they are more robust as their valves can remain open (i.e.
powered) to CH if that was the last demand, even if demand has now
ceased, therefore more wear on the motor)."

Is this really true? I would have thought that a microswitch would
stop the motor when it has reached position.


No when they reach the fully open position the motor stalls and remains
energised, they are designed to operate in this way.
The microswich calls for heat from the boiler etc.It is nor a limit switch as such.

As mentioned order the generic replacement motors from BES




--
Graham.

%Profound_observation%

"Tony Bryer" wrote in message
...
On Sat, 21 Aug 2010 23:17:33 +0100 Spamlet wrote :

No I didn't!
S

"Change the motor (for Honeywell, they recommend you get a Honeywell
motor as it they are more robust as their valves can remain open (i.e.
powered) to CH if that was the last demand, even if demand has now
ceased, therefore more wear on the motor)."

Is this really true? I would have thought that a microswitch would
stop the motor when it has reached position.

No, two port valves are spring loaded to close. When power is applied to
the motor the valve opens; when it reaches the limit stop the motor
stalls. The microswitch in the MV is to switch the boiler on and off

--
Tony Bryer, Greentram: 'Software to build on' Melbourne, Australia
www.superbeam.co.uk www.eurobeam.co.uk www.greentram.com

On 21/08/2010 20:57, DavidA wrote:
Hi

A Honeywell V4043H1056 2-port motorised valve in our CH system has
stuck. I suspect that the synchronous motor has failed.

A replacement Honeywell motor seems to cost around £25. Screwfix do a
Drayton motor for around £13 (page 420 of Spring 2010 catalogue),
which is supposed to fit many valves.

Please can anyone advise whether the Drayton motor is suitable for
this Honeywell valve?

It's probably the same motor - there are very few sources. If Sf says it
fits your valve, it will be ok.


I did see a post on another forum ('diybanter') that stated:

"Change the motor (for Honeywell, they recommend you get a Honeywell
motor as it they are more robust as their valves can remain open (i.e.
powered) to CH if that was the last demand, even if demand has now
ceased, therefore more wear on the motor)."

Is this really true? I would have thought that a microswitch would
stop the motor when it has reached position.


The standard 2-port valve has a spring return rather than being motored
both ways. In the open position the motor is still powered and runs
stalled. When the power is removed, the spring closes it.
--
Cheers,
Roger
____________
Please reply to Newsgroup. Whilst email address is valid, it is seldom
checked.

Roger Mills wrote:
On 21/08/2010 20:57, DavidA wrote:
Hi

A Honeywell V4043H1056 2-port motorised valve in our CH system has
stuck. I suspect that the synchronous motor has failed.

A replacement Honeywell motor seems to cost around £25. Screwfix do a
Drayton motor for around £13 (page 420 of Spring 2010 catalogue),
which is supposed to fit many valves.

Please can anyone advise whether the Drayton motor is suitable for
this Honeywell valve?

It's probably the same motor - there are very few sources. If Sf says
it fits your valve, it will be ok.


I did see a post on another forum ('diybanter') that stated:

"Change the motor (for Honeywell, they recommend you get a Honeywell
motor as it they are more robust as their valves can remain open
(i.e. powered) to CH if that was the last demand, even if demand has
now ceased, therefore more wear on the motor)."

Is this really true? I would have thought that a microswitch would
stop the motor when it has reached position.


The standard 2-port valve has a spring return rather than being
motored both ways. In the open position the motor is still powered
and runs stalled. When the power is removed, the spring closes it.

I have just been looking at this post. It seems that the same motor is used
in both 3 port and 2 port valves. That is something that I had never
considered before.

Of course the problem with the 3 port valve is explained here

http://www.diyfaq.org.uk/plumbing/co...itionvalve.htm

In a 3 port valve the motor could be held in a stalled position for months.

--
Adam

Thanks very much for all your replies. I ended up taking the head off
the valve and turned the valve by hand with pliers. It was very stiff
but soon loosened up. It turned out that the motor was working after
all. So I just hope the valve doesn't seize up again.

David

In message , Spamlet
writes

"DavidA" wrote in message
...
Hi

A Honeywell V4043H1056 2-port motorised valve in our CH system has
stuck. I suspect that the synchronous motor has failed.

A replacement Honeywell motor seems to cost around £25. Screwfix do a
Drayton motor for around £13 (page 420 of Spring 2010 catalogue),
which is supposed to fit many valves.

Please can anyone advise whether the Drayton motor is suitable for
this Honeywell valve?

I did see a post on another forum ('diybanter') that stated:

"Change the motor (for Honeywell, they recommend you get a Honeywell
motor as it they are more robust as their valves can remain open (i.e.
powered) to CH if that was the last demand, even if demand has now
ceased, therefore more wear on the motor)."

Is this really true? I would have thought that a microswitch would
stop the motor when it has reached position.

Best regards

David

Ah, scarcely a week goes past without motorised valve woes. On past form I
would make sure it really is the motor that has blown, before splashing out.
The microswitches are usually the first to go, though it's usually the
3-port valve we hear about.

No its not

the V4043H is a two port valve, the microswitch is only there to provide
feedback that the valve is open


synchron motor failure is a more common failure than microswitches
(except in drayton valves for some reason)
--
geoff

In message
,
DavidA writes
Hi

A Honeywell V4043H1056 2-port motorised valve in our CH system has
stuck. I suspect that the synchronous motor has failed.

A replacement Honeywell motor seems to cost around £25. Screwfix do a
Drayton motor for around £13 (page 420 of Spring 2010 catalogue),
which is supposed to fit many valves.

Please can anyone advise whether the Drayton motor is suitable for
this Honeywell valve?

I did see a post on another forum ('diybanter') that stated:

"Change the motor (for Honeywell, they recommend you get a Honeywell
motor as it they are more robust as their valves can remain open (i.e.
powered) to CH if that was the last demand, even if demand has now
ceased, therefore more wear on the motor)."

DiyBanter bollox as usual


just buy the cheapest - they all die sooner or later



Is this really true? I would have thought that a microswitch would
stop the motor when it has reached position.

Best regards

David

--
geoff

In message
,
DavidA writes
Thanks very much for all your replies. I ended up taking the head off
the valve and turned the valve by hand with pliers. It was very stiff
but soon loosened up. It turned out that the motor was working after
all. So I just hope the valve doesn't seize up again.

Then you have water getting past the bottom rubber "O" ring on the shaft

--
geoff