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Home > Archive > Plumbing forum > June 2005 > central heating gone very wierd
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central heating gone very wierd
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recently i've had a couple of radiators added to my system and a shower.
everything has been running just fine for the past three weeks until last
night ...
i was decorating so not paying much attention but did notice that it was
very hot. i turned down the thermastat that's in the dining room several
times thinking surely the radiators must turn off soon.
anyway, it wasn't until later i actually did some testing and realised that
the radiators were actually coming on with the hot water heating and to make
matters worse the hot water heating wasn't stopping unless i switched it off
i.e. the water was definitely hot enough (in fact scalding) but the boiler
was still continuously on.
i've also noticed in the airing cupboard that there's a definite continuous
click click click coming from it.
to recap, the radiators are coming on and extremely hot when i turn the hot
water heating on regardless of any setting that the thermostat in the dining
room is. the hot water is extremely hot. there's a regular clicking sound
coming from the airing cupboard about once every second.
any ideas what's causing this?
tia,
alex
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| Mark Monson 2005-06-16, 2:27 pm |
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"Alex" <nospam@spam.spam> wrote in message news:Kqudna5gRpquBMbfRVnyvg@pipex.net...
quote:
>
> recently i've had a couple of radiators added to my system and a shower.
> everything has been running just fine for the past three weeks until last
> night ...
>
> i was decorating so not paying much attention but did notice that it was
> very hot. i turned down the thermastat that's in the dining room several
> times thinking surely the radiators must turn off soon.
>
> anyway, it wasn't until later i actually did some testing and realised that
> the radiators were actually coming on with the hot water heating and to make
> matters worse the hot water heating wasn't stopping unless i switched it off
> i.e. the water was definitely hot enough (in fact scalding) but the boiler
> was still continuously on.
>
> i've also noticed in the airing cupboard that there's a definite continuous
> click click click coming from it.
>
>
> to recap, the radiators are coming on and extremely hot when i turn the hot
> water heating on regardless of any setting that the thermostat in the dining
> room is. the hot water is extremely hot. there's a regular clicking sound
> coming from the airing cupboard about once every second.
>
> any ideas what's causing this?
Could be the control power is interrupted causing reset to the full open default.
In any case, you should call a professional immediately. A runaway boiler has
tremendous destructive potential.
MM
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| Ned Flanders 2005-06-16, 2:27 pm |
| the thermostat wires have been switched by accident.
"Alex" <nospam@spam.spam> wrote in message
news:Kqudna5gRpquBMbfRVnyvg@pipex.net...
quote:
>
> recently i've had a couple of radiators added to my system and a shower.
> everything has been running just fine for the past three weeks until last
> night ...
>
> i was decorating so not paying much attention but did notice that it was
> very hot. i turned down the thermastat that's in the dining room several
> times thinking surely the radiators must turn off soon.
>
> anyway, it wasn't until later i actually did some testing and realised
> that
> the radiators were actually coming on with the hot water heating and to
> make
> matters worse the hot water heating wasn't stopping unless i switched it
> off
> i.e. the water was definitely hot enough (in fact scalding) but the boiler
> was still continuously on.
>
> i've also noticed in the airing cupboard that there's a definite
> continuous
> click click click coming from it.
>
>
> to recap, the radiators are coming on and extremely hot when i turn the
> hot
> water heating on regardless of any setting that the thermostat in the
> dining
> room is. the hot water is extremely hot. there's a regular clicking
> sound
> coming from the airing cupboard about once every second.
>
> any ideas what's causing this?
>
> tia,
> alex
>
>
>
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| John G 2005-06-16, 2:27 pm |
|
"Alex" <nospam@spam.spam> wrote in message
news:Kqudna5gRpquBMbfRVnyvg@pipex.net...
quote:
>
> recently i've had a couple of radiators added to my system and a shower.
> everything has been running just fine for the past three weeks until last
> night ...
>
> i was decorating so not paying much attention but did notice that it was
> very hot. i turned down the thermastat that's in the dining room several
> times thinking surely the radiators must turn off soon.
>
> anyway, it wasn't until later i actually did some testing and realised
that
quote:
> the radiators were actually coming on with the hot water heating and to
make
quote:
> matters worse the hot water heating wasn't stopping unless i switched it
off
quote:
> i.e. the water was definitely hot enough (in fact scalding) but the boiler
> was still continuously on.
>
> i've also noticed in the airing cupboard that there's a definite
continuous
quote:
> click click click coming from it.
>
>
> to recap, the radiators are coming on and extremely hot when i turn the
hot
quote:
> water heating on regardless of any setting that the thermostat in the
dining
quote:
> room is. the hot water is extremely hot. there's a regular clicking
sound
quote:
> coming from the airing cupboard about once every second.
>
> any ideas what's causing this?
>
> tia,
> alex
>
>
>
Sounds rather like the three port valve playing up to me.
Can you identify where the clicking noise is coming from?
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