Potterton promax 24 HE boiler

[khalfa]

I've installed a new potterton promax 24 HE condensing boiler only a few months ago as part of the existing open vented system which worked fine before the old boiler packed in. After a little while ( may be 3 weeks)every time the heating is switched on, after a few minutes there is a whining noise from the boiler. I thought that it may be the pump. I then installed a new circulating pump (myson)- set at speed 1. BUT THE PROBLEM STILL PERSISTS! Any remedial suggestions will be appreciated.

 

[kevplumb]

Failure to flush and add inhibitor to the
system will invalidate the appliance warranty.

straight out of the mi's

no mention in your post

 

[ollski]

how did you commission it and set up the air / gas ratio correctly?

 

[bripl]

with his nose no smell of gas must be alright as far as pump speed is concerned turn it up 1 is too low for a he boiler try looking at the fan for the whine and give it some cheese to shut it up

 

[khalfa]

surely Kev, lack of inhibitor should not cause that whining noise. However the system was thoroughly flushed.

 

[khalfa]

Hi ollski, system was commissioned as per manufacturer's instructions ( except adding inhibitor as I still need to drain system to add new radiator).
Did not see any instruction or requirement to set air/gas ratio. Anyway why is it necessary and how is it done?

 

[gazthepottertonengineer]

DO NOT ADJUST AIR /GAS RATIO
even as a potterton engineer we dont mess about with that as a digtal manometer isnt accurate enough and you would need specialist tools when ever we get problems like that we simply replace gas valve
sounds like it could be fan though althogh this is a rare problem

 

[kevplumb]

althogh this is a rare problem icon_question.gif

according to you mate everything with the name potterton is a rare problem

 

[gazthepottertonengineer]

not at all combustion doors coming loose happens all the time only took them 2 years to work out they needed to put washers on screws

 

[khalfa]

gasthepottertonengineer, any suggestions as to what I may attempt in the famous process of elimination? Mind you, I have already changed the pump, checked again, noise is definitely from the boiler. Lack of inhibitor can't cause this to a practically new boiler, can it? Apart from the noise, it seems to function well. PLEASE HELP!

 

[kevplumb]

no probs mate post your corgi number

 

[Baxi-Remeha]

sounds to me you need a proper corgi to sort it out, for your own saftey

 

[kevplumb]

ahh the kracken awakes
you took your time

 

[Baxi-Remeha]

lol

 

[Agile]

The original poster seems very slow to post his CORGI number!

Perhaps he is not registered?

Tony Glazier
(184194)