I find that the pressure constantly drops below 0.5 when the central heating is switched off.
I have to always open the valve to increase the pressure. When CH comes on the pressure rises as normal. When CH switches off it drops down to 0.
I have tried bleeding the radiators but they seem fine.
Any ideas.
Thanks
I have to always open the valve to increase the pressure. When CH comes on the pressure rises as normal. When CH switches off it drops down to 0.
I have tried bleeding the radiators but they seem fine.
Any ideas.
Thanks