Hi, I have a Tribune HE 150L indirect (according to a sticker on it!) and I have a couple of questions that I hope some good soul can answer for me. I have a small grundfos pump that appears to be from the boiler flow and it never stops running irrespective of what the boiler is doing. I expect some overrun but should it be constant? It only stops when I switch the fused spur off to the programmer. I have only noticed it since changing from a PRT2 thermostat to a standard type. I got the wiring instructions from this site and it works fine so I don't know if the pump has always done this and I am imagining that the two are related. Also, I have an expansion vessel on a wall bracket and I don't know what the gauge should read, its reading nothing at the moment. There is a red needle but I dont know if this is a limit or is the correct reading that the other needle should also be at. Does any of that make sense to anyone.
thanks in advance.
Ian.
thanks in advance.
Ian.
