Hi, still trying to sort my heating problems out re: wiring.
My mid positioner motorised valve seems permanently open or shut. When I operate the manual lever there is no resistance so I'm unable to open/close manually. The retaining spring is taught.
Even with the power off there is no change in the motor position and spring tension.
I believe the system is wired Y plan.
The boiler is a Potterton Prima F. The programmer is a Wicks basic rotary clock type, On/Off twice. No room stat , but connected to a cylinder stat.
Any advice welcome.
Best wishes from,
Gibson8206.
My mid positioner motorised valve seems permanently open or shut. When I operate the manual lever there is no resistance so I'm unable to open/close manually. The retaining spring is taught.
Even with the power off there is no change in the motor position and spring tension.
I believe the system is wired Y plan.
The boiler is a Potterton Prima F. The programmer is a Wicks basic rotary clock type, On/Off twice. No room stat , but connected to a cylinder stat.
Any advice welcome.
Best wishes from,
Gibson8206.