"The Natural Philosopher" wrote in message
...
Stuart B wrote:
I have an Alpha CD 32C Boiler and a wireless controller in the hall
which is fitted with a rad which has no TRV .Tonight I happened to
notice that this rad was cold at the top so I bled it and there was
quite a lot of air in it for some reason . Later on I suddenly realised
the flat was getting chilly and on
investigating I found that the controller was calling for heat but
that the rads were all cold .I went to the boiler and it wasn't
providing heat and the pressure was showing as zero and the warning
lights were showing ....I didn't note what the sequence was but I
think it was the sequence that means a low pressure .I topped up the
pressure and everything seems fine now .

It seems too much of a concidence that my bleeding this rad would not
have anything to do with the boiler stopping to operate but I cannot
understand why that would be and I like to know reasons for things
happening .


You need to repressurise if you remove any volume form the closed system.
By bleeding you did.


Anyone suggest what has gone on here .


Stuart


How do you prove your usefulness in the house if you are not going around
checking and bleeding the radiators every few days?