Hi all
We moved into a house in the summer and noticed from the get-go that our hot water was scalding hot. I tried turning the thermostat on the cylinder down but it made no difference whatsoever. I've recently discovered that this is due to an immersion heater that appears to have been continually on since we moved in (that'll explain the electricity bill!). When I discovered this, I turned the immersion heater off so the system is now dependent on the the timer (20 mins in the morning, 20 mins in the evening), however we now seem to have no hot water at all.
I've been putting the mid-position valve through it's paces to try and diagnose the problem:
When the power to the boiler is off, the actuator sits at 'W'. When the heating is on, the actuator sits at 'H'. When the heating and HW are on, the actuator still sits at 'H'. It never moves to M.
It would seem then, that I will only ever get heating with the valve as it is. Does this sound like a motor failure? I think it's the old style valve, so I guess it'll be a system drain to replace - or is there some way of avoiding this?
I've also noticed that even when the heating is off, some of the upstairs radiators remain warm (not hot). The cylinder is in the loft with the boiler downstairs.
Thanks in advance for all your help!
We moved into a house in the summer and noticed from the get-go that our hot water was scalding hot. I tried turning the thermostat on the cylinder down but it made no difference whatsoever. I've recently discovered that this is due to an immersion heater that appears to have been continually on since we moved in (that'll explain the electricity bill!). When I discovered this, I turned the immersion heater off so the system is now dependent on the the timer (20 mins in the morning, 20 mins in the evening), however we now seem to have no hot water at all.
I've been putting the mid-position valve through it's paces to try and diagnose the problem:
When the power to the boiler is off, the actuator sits at 'W'. When the heating is on, the actuator sits at 'H'. When the heating and HW are on, the actuator still sits at 'H'. It never moves to M.
It would seem then, that I will only ever get heating with the valve as it is. Does this sound like a motor failure? I think it's the old style valve, so I guess it'll be a system drain to replace - or is there some way of avoiding this?
I've also noticed that even when the heating is off, some of the upstairs radiators remain warm (not hot). The cylinder is in the loft with the boiler downstairs.
Thanks in advance for all your help!