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Maxima 35S

I have a problem with my 8 month old Ferroli boiler which their engineer is claiming is not down to a fault in the boiler so in effect they have walked away. Briefly when the heating system is first put on I would expect the burner to be on max. There is a visual display which goes up to 5...

Who makes the best and most reliable boilers ? The reason for asking is that I presently have a Ferroli that's constantly breaking down. On average every three months. The latest problem relates to a seal going around the burner allowing the flame to get into the casing. This has also warped...

Thanks, I was getting a bit worried !

I have recently replaced my Honeywell three port valve head. Is it normal for this to remain quite warm even when the heating & water have been off for some time and the pipework has cooled down?

Tony Yes, even had the pump changed. Also I now have a sealed system rather than open vented. I don't think this is an air problem, but is down to physical blockage. I can't think of anything else to try except for power flushing

I do seem to have flow everywhere but only when I shut down upstairs will the downstairs rads heat up and then slowly. The same applies to the upstairs when I close down the downstairs rads. The pump just can't get the flow around the system hence my view that I have a blockage on the return...

I have recently had a number of problems with my heating system. Basically I can get heating upstairs or downstairs but not both at the same time. The problem seems to be related to the return pipe to the boiler which is just getting warm. I think that there may be a blockage in this pipe. I...

Having recently drained & refilled my central heating system the radiators are not working. Hot water gets as far as the inlet pipes but does not enter the radiators. Having tried all the recommendations regarding air locks & bleeding etc, I think I may have a blockage in the 22mm return...

I've looked at the pump which is located in the boiler and can't see a way of bleeding it. But it does appear to be working ok. The pipework upstairs is hot to the radiators but is still not circulating through them. I have three loops upstairs coming off 28mm pipework from the boiler. The...

Having drained down upstairs central heating system to replace 3 way port valve, system refilled okay but power to radiators very poor, luke warm - return pipework cold. Tried draining all system this morning and refilled but again pipework from boiler nice and hot but return pipework cold and...

Yes, I had in the mid position. The valve seems to working fine with water going to the cylinder and heating feed as required. However the return pipe from the heating circuit is cold. For some reason the water is not circulating. The pump and boiler are working fine.

I have recently changed the 3 way valve and drained the system. I now have a problem in that hot water is getting to the inlet pipes at the radiators but the rads are not heating up. It seems that the water is not flowing back to the boiler. I've tried bleeding and shutting down all radiators...

Tony, Many thanks for your advice, I will give it a try. But before I do, here is some further information. The water is not coming in via the vent pipe or ball valve so it must be entering via the 15mm outlet from the tank. The rise in level is slow, it takes nearly all day and the...

Yes the ball valve is adjusted correctly and there are no signs of water coming out of the vent pipe. I don't think this is related to expansion due to the amount of water that is coming into the tank. Whatever is causing the problem I think is due to something else in the system. Is it...

Many thanks for your advice. The reason I thought it may be related to the hot water heating coil is that it's only recently happened. The pump speed has not been altered. I don't think this is an over-pumping problem, so the water must be coming up the feed pipe from somewhere.

I have an open vented system and recently noticed that water was coming out of the overflow from the expansion tank in the loft. Having checked the tank, the water level was above the ball cock and so thinking the ball valve was the problem, I replaced it. However, the problem is still there...

A fault has developed with my Ferroli Maxima 35S boiler. The fault code indicates that the flue gas sensor may be damaged. This seems to have happened during the recent bad weather. Is it possible that rain water could have entered the boiler via the flue and damaged the sensor. As the...

What I'm working round to is a question about the bypass valve. I understand that it should be open enough to suit the system. But one recent reply stated that it should be closed if on a Y Plan. Since closing it down, but not fully, the boiler seems to be staying on longer, as it was...

Only one which is at the T juction of the 28 mm pipes in the airing cupboard