Grundfos Selectric Pump Noise - Is It Normal?

[Ash-GT]

Hi all,

After some excellent help on this forum over the last few weeks, where it was diagnosed that my Grundfos Selectric pump had been installed in the wrong direction in my new house, I have now corrected the flow direction and all appears well.

However, while checking for leaks, I noticed that the central heating pump was making a clicking sound when in operation. Now, it might be that the pump has always made this sound (and was masked by the horrendous previous gurgling), but I cannot recall any previous pumps making this sound.

Again, it might be me paying more attention, but you can actually hear the ticking sound through some of the upstairs radiators. I have bled the system and the pump, but it is still there.

http://www.filedropper.com/img0254

I could do with an expert listing to the sound file and letting me know what you think?

Thanks,

Ash

 

[delmel]

sure its not the sound of water flow moving through at speed.

 

[D_Hailsham]

What speed is the pump on?

Have you balanced the system since you turned the pump round?

 

[Ash-GT]

Thanks all. The pump is on setting 2.

I've not balanced the system, didn't think of that. Thanks.

Ash