Shower Pump for Hot Water tries to run when shower turnedoff

[billychan]

Hi, Can anyone help. Firstly I started to get a problem with hot water being a dribble. If I turned on other bathroom hot tap it then kicked in.

It has been off a while for decorating - when I tried it this morning it didnt work at all. I checked Grunfoss pump and turned dial to another setting - hey presto it worked but now then pump wants to work on its own when the shower is off and it is making a heck of a noise.

Can anyone help?

Regards

 

[Breesey]

Clean the pump inlet filters out.

 

[billychan]

Thanks will try that.