powermax 155

[ilsonram]

had a whistleing noise from my boiler. corgi plumber adjusted gas/air ratio. Now have a "trumpet" noise which last for 20 mins, this starts as the burner cuts in. Anyone know what this is and how to solve.

 

[ollski]

yes the air / gas mixture is incorrect by the sound of it, why was it adjusted in the first place?

 

[ilsonram]

ollski.
reason for altering pressure first was that the boiler was whistleing. it now as the trumpet noise

 

[gazthepottertonengineer]

sounds like you need someone who knows how to set a pre-mix burner up correctly using a differential digital manometer
only manafacturers should be doing this as the correct setting isnt actually stated anywhere to stop people messing bout with it

 

[ilsonram]

gaz
thanks for the reply. any ideas who to contact

 

[gazthepottertonengineer]

could try potterton as we brought the powermax range a few years ago on 08706 096096 we do fixed price call outs which range from £170 depending on age of boiler