On Thu, 25 Nov 2004 18:00:43 +0000, Chris
strung together this:

Any suggestions on the possible faults would be appreciated.

Not a fault as such;

Where is the boiler? My guess would be the garage. If it is then this
is just the frost protection, either internal or external to the
boiler itself. The frost protection will override the timeclock
settings and turn the boiler if it gets below ~5 degrees c.
--

SJW
A.C.S. Ltd
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"Chris" wrote in message
...
Can anyone help me identify the cause of a problem with my central
heating system.

My water supply is a pressure based system so there is no water tank
in the loft. I have an immersion heater in one of the bedrooms and
attached to the pipes is a water pump. I have a Drayton timer control
switch and an Ideal Classic FF230 boiler.

Earlier this week I noticed that the boiler began switching itself on
when it is programmed to be off. It powers on and seems to ignite but
then within 1 minute or so switches off again. It works perfectly
during the times it is actually programmed to be on. Is there a fault
with the boiler?

I have checked the Drayton timer control/programmer by replacing it
with another one and the boiler still switches itself on so I'm
guessing it cannot be a faulty programmer.

I have also noticed that the water pumps seems to be very hot
constantly so I assume it must be on continuously and maybe this is
related to the boiler switching itself on or perhaps the pump is
going?

I have bled the radiators but there was no air in any of them.

Any suggestions on the possible faults would be appreciated.


The Glow worm that I have cycles the pump every 24 hours just to keep it
'unstuck' could yours be doing this?

Peter

"Lurch" wrote in message
...
On Thu, 25 Nov 2004 18:00:43 +0000, Chris
strung together this:

Any suggestions on the possible faults would be appreciated.

Not a fault as such;

Where is the boiler? My guess would be the garage. If it is then this
is just the frost protection, either internal or external to the
boiler itself. The frost protection will override the timeclock
settings and turn the boiler if it gets below ~5 degrees c.
--
I was working in my garage during the day (garage door open sorting cars on
drive) and I noticed the boiler, in the garage was on, even though I knew
heating and hot water was off. This was due to the frost stat, set to
7degrees C in my case.

"Chris" wrote in message
...
Lurch wrote:

On Thu, 25 Nov 2004 18:00:43 +0000, Chris
strung together this:

Any suggestions on the possible faults would be appreciated.

Not a fault as such;

Where is the boiler? My guess would be the garage. If it is then this
is just the frost protection, either internal or external to the
boiler itself. The frost protection will override the timeclock
settings and turn the boiler if it gets below ~5 degrees c.

Thanks for the suggestion.

The boiler is in the kitchen and the same problem happens during the
day as well as the night. I don't think the temperature has got below
0 degrees yet in any case.


Without seeing it it's difficult to be sure but I'm guessing that it is
keeping your cylinder hot i'e' just making up losses. What controls
(time/temperature) do you have?