Thanks all for the replies.
1. the black wire is in a loop, it is just for the motorised valve
2. the arrow on the pump body is pointing towards the 3-way valve
3. the pipes coming off before the pump and rejoining afterwards i believe are the heated towel rails in the bathrooms as they are...
Thanks for the replies.
Yes, we replaced the whole brass T and the electrical unit, then just replaced the motor as well.
The metal arm on the switch has a resting position of halfway….part of me has been wondering if the valve is getting the full movement, but when I read that the ‘MAN’...
Since moving into a new (old) house we've been chasing issues with the heating and hot-water. It's a standard system with boiler, hot water cylinder and 2 feed tanks in the roof.
The issue we face is that the heating always comes on with the hot-water.
Initially when we looked at the 3-way...