central heating wiring centre

[Mattodl]

Yea that is correct. However the pump somehow also receives power off another what that is not directly wired to it. I assume this wire also powers the yellow wire. The wire I am referring to is seated next to the blue sleeved red how water on wire.

 

[terryplumb]

Where does this other wire connect to the brown wire of the pump ?

Yea that is correct. However the pump somehow also receives power off another what that is not directly wired to it. I assume this wire also powers the yellow wire. The wire I am referring to is seated next to the blue sleeved red how water on wire.

This makes no sense whatsoever.

 

[Mattodl]

Basically from what I can tell the wire I’m questioning also powers the pump. I believe by powering the yellow cable. I’ll take a video later to try and show the issue.