Humming/Noise from Boiler

[ozziechef]

Yesterday I bled one of my radiators as it wasn't getting hot at the top. However since I've done that I now get a humming/whistling/annoying tone from my central heating boiler.

When the boiler kicks in after about 5 minutes it starts and is consistenet and quite loud.

I can only think something happened when I bled the radiator - could i have moved the air elsewhere?

it's an ideal Classic RS60 boiler.

Any help?

 

[bengasman]

Any water in the headertank?

 

[ozziechef]

I guess so, everything works well - I have hot water and heating but an annoying noise to accompany it

 

[bengasman]

I guess so..

Guessing don't do the job

 

[ozziechef]

Having been up into the loft there is water in the tank, sorry I'm a bit of a novice at this!

If it helps, the noise seems to come from either the boiler itself or the pipes coming out of the boiler, I can't work out which.

I read that maybe the boiler pump needs bleeding? ANyone know where htis is likely to be!

 

[bengasman]

Bleeding pump would be my next step. Most common places are near the cylinder somewhere.
FAQ tells you all about how and what.
Look in headertank when you have a moment and see how clean it is. Also check how clean the silver screw is at the wet end; I suspect corrosion.