Are these serviceable at all? Have one that won't turn off. Thanks. Its possibly be over turned and spinning though it's presently in. Not seen the valve yet.
I haven't been to the boiler yet. But in correct in saying E1 is a low pressure fault. Do the pressure sensors ever block up on these often? Also does anyone no what the main HEX is made of on the boilers?
Yes would be solid ones I think would look poor though too 75mm extensions either side
Edit
It would be 80mm too short for the current pipe centres so two 40mm extensions or an 80. Still I think would look poor