I have a serious problem somewhere in my central heating. This morning at around 04:00am I awoke to find both my heating and hot water switched on. I went to look at the controller - a Sunvic XL 207 - and sure enough both red lights were on. The digital display however is completely blank. There is no information being displayed whatsoever and even worse, none of the buttons are responding. I cannot turn off either the heating or the water.
The boiler is one of these: http://www.avantaplus.com/index.php?content=24s and was fitted 2 years ago.
However, the Sunvic XL 207 is the third one in that time. The previous two stopped working on the heating side though the water would still work. Now, this one having only been fitted 3 weeks ago is giving me a new problem i.e. turning on both heating and water and not allowing me to turn them off.
I am at a complete loss as to what the problem might be. Could it be a wiring problem? Surely these Sunvic controllers should last a little longer than they have done?
There is a wire coming out of (what I think is) a 3-port mid position valve (made by honeywell) that goes to the Sunvic. Could it be this valve?
More pressingly, I need to turn the boiler off. Will I do any damage if I just flick the mains switch next to the boiler?
I am desperate for some pointers. Please help.
Thanks
The boiler is one of these: http://www.avantaplus.com/index.php?content=24s and was fitted 2 years ago.
However, the Sunvic XL 207 is the third one in that time. The previous two stopped working on the heating side though the water would still work. Now, this one having only been fitted 3 weeks ago is giving me a new problem i.e. turning on both heating and water and not allowing me to turn them off.
I am at a complete loss as to what the problem might be. Could it be a wiring problem? Surely these Sunvic controllers should last a little longer than they have done?
There is a wire coming out of (what I think is) a 3-port mid position valve (made by honeywell) that goes to the Sunvic. Could it be this valve?
More pressingly, I need to turn the boiler off. Will I do any damage if I just flick the mains switch next to the boiler?
I am desperate for some pointers. Please help.
Thanks