We have just one radiator which insists on a fairly high pitched and
constant whistle type of noise.

A small turn of the valve will cause it to stop ... for about 10 mins
and then off it goes again.

Clues & solutions?
--
AnthonyL

On 10 Oct 2016 12:39, AnthonyL wrote:
We have just one radiator which insists on a fairly high pitched and
constant whistle type of noise.

A small turn of the valve will cause it to stop ... for about 10 mins
and then off it goes again.

Clues & solutions?

Change the circulating pump speed/flow setting?

--
Flying on Per Ardua ad Astra

AnthonyL wrote:

We have just one radiator which insists on a fairly high pitched and
constant whistle type of noise.

Possibly its TRV is fitted 'backwards', does it have an arrow on the
body? Does the arrow correspond to the end that gets hot first?

Andy Burns wrote:
AnthonyL wrote:

We have just one radiator which insists on a fairly high pitched and
constant whistle type of noise.

Possibly its TRV is fitted 'backwards', does it have an arrow on the
body? Does the arrow correspond to the end that gets hot first?

+1

Bob Minchin wrote in news:ntg21j
:

Andy Burns wrote:
AnthonyL wrote:

We have just one radiator which insists on a fairly high pitched and
constant whistle type of noise.

Possibly its TRV is fitted 'backwards', does it have an arrow on the
body? Does the arrow correspond to the end that gets hot first?

+1


Also - it it has a TRV it may be worth trying to reduce the flow with the
lockshiled valve on the other end. Does this radiator get hot fairly
quickly? It could be getting too high a flow.

Andy Burns wrote:
AnthonyL wrote:

We have just one radiator which insists on a fairly high pitched and
constant whistle type of noise.

Possibly its TRV is fitted 'backwards', does it have an arrow on the
body? Does the arrow correspond to the end that gets hot first?



+1. Some TRVs don't mind but others can be noisy if fitted the wrong way
round.

Tim

--
Please don't feed the trolls

On 10/10/16 13:43, DerbyBorn wrote:
Bob Minchin wrote in news:ntg21j
:

Andy Burns wrote:
AnthonyL wrote:

We have just one radiator which insists on a fairly high pitched and
constant whistle type of noise.

Possibly its TRV is fitted 'backwards', does it have an arrow on the
body? Does the arrow correspond to the end that gets hot first?

+1


Also - it it has a TRV it may be worth trying to reduce the flow with the
lockshiled valve on the other end. Does this radiator get hot fairly
quickly? It could be getting too high a flow.

IME it is in fact partly closes lockshields that cause the whistle.

The local velocity is high, then.


--
All political activity makes complete sense once the proposition that
all government is basically a self-legalising protection racket, is
fully understood.

Also - it it has a TRV it may be worth trying to reduce the flow with
the lockshiled valve on the other end. Does this radiator get hot
fairly quickly? It could be getting too high a flow.

IME it is in fact partly closes lockshields that cause the whistle.

The local velocity is high, then.



Open another more.

On 10/10/2016 14:17, Tim+ wrote:
Andy Burns wrote:
AnthonyL wrote:

We have just one radiator which insists on a fairly high pitched and
constant whistle type of noise.

Possibly its TRV is fitted 'backwards', does it have an arrow on the
body? Does the arrow correspond to the end that gets hot first?



+1. Some TRVs don't mind but others can be noisy if fitted the wrong way
round.

an IME, some that claim not to mind still whistle when run backwards.


--
Cheers,

John.

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Not sure at a block of flats I frequent this is happening and the only way
to stop it is to push on the valve so I'd suggest something is oscillating
maybe the valve itself or it is worn or dry of lubricant or some such.
Brian

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"Zephirum" wrote in message
...
On 10 Oct 2016 12:39, AnthonyL wrote:
We have just one radiator which insists on a fairly high pitched and
constant whistle type of noise.

A small turn of the valve will cause it to stop ... for about 10 mins
and then off it goes again.

Clues & solutions?

Change the circulating pump speed/flow setting?

--
Flying on Per Ardua ad Astra