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tank should not be warm convert to a pressurised system if possible and see if the condensation goes away.

So ben can you inform a qualified engineer what you would do? The op can take it as said that he cant do it as he does not have a fga. Can the opp please confirm that he had no intention of diy ing a fan on his own boiler based on joes comments.

i would recommend the Veissmann but that will upset my friend Dan. So im sure intergas is great. however look at weather compensation to go with the new boiler.

The pump speed is related to the resistance of your heating system and the output of your boiler. On average most pumps are correctly set at setting 2. you may have some obstruction in your system causing a bit of pump strain. measure the difference in temperature between the flow and return on...

It is called a silencer as it prevents an acoustic vibration from occurring when drawing in air. your heat exchanger could be obstructed. Is the boiler cycling? can you measure the temperature of the flow and return?

Is the the valve on the top of the vessel or the bottom?

Open vented combie is very unusual. In fact ive never seen one. Are you sure. If system is open vented check the water level in the tank. If sealed check the system pressure.

Ben what do you think the problem is. Leave joe alone and deal with the op.

Is the shreider valve at the bottom or top? If at the bottom it is possibly ok. lower the system pressure to 0 and pump up the vessel to 1 bar. Then top up the system pressure to aprox 1 bar. check that your prv is not letting by.

in this weather the boiler shouldn't be cycling if it is you have a different problem. I agree sort out the creak.

Joe i'm new to this forum and have observed that a few offer advice while many just berate and criticise. Don't be put off by the negative side of these under accomplished persons. discussion is the way to learn and some of us welcome those who are willing to do so in the true spirit of this forum.

i just re read Joes' entries and think you should do the same. What do you think? are you qualified? I am but dont know the answer so im waiting to learn. May be some one other than Joe would like to try.

I believe that the hall sensor fitted in the fan can be used to get a reading from the control panel on the Vailant boilers. Is this correct or am i dreaming. On the Veissmann boilers if the fan speed fall outside of the correct speed the control will display F9

Gentle men please stop berating each other. offer up your own advice the OP can judge for himself who is offering good advice. only joe for the record has offered any. well done joe.

peter, you need to control your self. You have a personality defect that makes you believe your point of view is valid even in the face of common sense and popular opinion. This psychological illness can be treated. best leave the forum and seek professional help. This is available on the...

Don't agree about 3 hours. If the boiler is cycling the rad and pipework will continue to click. Plastic friction reducing spacers on the brackets are designed to deal with this. Cut out some old plastic pot (yoghurt comes to mind) and place it in the slot on in the bracket. May be easier said...

Please give more information. What boiler?. Sealed system or open vented?

I've never heard such a rant of envious bile in my life. Peter ignorea the law and slates those that obey it. Justifying his low life point of view with reference to the kind of poor installer he himself uses to pass of his own substandard and probably illegal work. Peter you are the problem not...

Did it work?

Has a solution been found?