Slightly strange question!
Got up yesterday morning and no hot water, the system has a hot water tank and two Sunvic 2 port motorised valves, 1 for the radiators, the other for the coil in the hot water tank.
I went through the usual checks and am satisfied that the controls and boiler are all working correctly, as are both valve actuator heads. However even when the hot water actuator head is manually set to "flushing" position there was no flow to the tank coil.
I removed the actuator and was able to turn the valve spindle manually, it was slightly sticky but could be moved using only my fingers, still no flow when set to the open position though.
Here's the question,
Is it likely/possible that the valves internal "shoe" is stuck and the spindle has become detached from the spindle?
The valve is at least twenty years old!
Thanks in advance Guys
Got up yesterday morning and no hot water, the system has a hot water tank and two Sunvic 2 port motorised valves, 1 for the radiators, the other for the coil in the hot water tank.
I went through the usual checks and am satisfied that the controls and boiler are all working correctly, as are both valve actuator heads. However even when the hot water actuator head is manually set to "flushing" position there was no flow to the tank coil.
I removed the actuator and was able to turn the valve spindle manually, it was slightly sticky but could be moved using only my fingers, still no flow when set to the open position though.
Here's the question,
Is it likely/possible that the valves internal "shoe" is stuck and the spindle has become detached from the spindle?
The valve is at least twenty years old!
Thanks in advance Guys