Thats because they are lazy or just dont understand the wet side of the system, what do you recon DavyJones?Are your radiators getting up to the same temperture?
Touch the return pipe at boiler, then touch the return pipe of cylinder. is there a noticeable differance in temperture?
If rads maintained temp then the following may apply.
on the cylinder you will have the two heating pipes entering the side of cylinder about 18" apart, flow at top, return at bottom.
On the return you should have a valve with a red wheel handle. this valve is used to balance system. It should be half open more or less depending on the balance of your particular system. Try opening it a few turns and see if things improve.
You should service your boiler on a yearly basis. However most servicemen will only service the boiler and not perform a system check unless directed.
Thats because they are lazy or just dont understand the wet side of the system, what do you recon DavyJones?
Surely they let the boiler run to temp after they service it and it would take 5 minutes to run around the system, even less if he did while the system runs to temp?
A lot of service men aren't plumbers but they still know their way around a heating system. They don't seem to want to get involved in the wet side. As long as the boiler is safe and fuctioning , they have satisfied their remit.
We have recieved more than one call from clients whom have been told by servicemen on behalf of BG that the problem was not boiler related once they inspected boiler and were adviced to call a plumber.
one callout I attended that sticks in my mind involved a BG serviceman called to client because downstairs rads not heating up, he came and said call a plumber, not boiler problem. When I arrived first thing I noticed was a motor from zone valve that came loose and wasn't making contact with spindle of valve. one press and click the motor was in place and working. the valve was less than a metre from boiler and in clear view. I wonder why the serviceman just didn't do that?
After thought
Follow Daveys advice, but be careful about raising the boiler temp, you could scald someone!!!!1 or trip the high limit stat!!!!!!
In all fairness, I know you did not advise that davey, nor did I mean to imply that you did, but I have seen boilers trip on the high limit when they are turned up to the hilt.BTW, I didn't advice to turn up stat. although it is prefectly safe to do so. High limit stat will only trip if control stat is faulty or their is another fault EG pump failure etc.
In all fairness, I know you did not advise that davey, nor did I mean to imply that you did, but I have seen boilers trip on the high limit when they are turned up to the hilt.
Where are you based davey?I must pass you on the name of a good serviceman
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