A mate of mine has been to have a look at the above boiler with fault code expires E9 displayed. Apparently means seized pump, overheat stat fault or so he tells me. He's put a Grundfos 15-60 on it, it still didn't work after he swapped over the pump electrics, which I have now had a look at. The box on the side of the original pump has a pcb in it, live neutral and earth connections, but then also has another connection with 3 other wires going to it. The stat has continuity through it and when you run the boiler it kettles up quickly with no circulation.
Now I assume I'm barking up the right tree here, the pump had 240v on the live and a resistance of 152 ohms. I think it looks like the pcb has failed on the pump, it also smells a bit strange.
Anyone know if this sounds correct and that only the original type pump is suitable? It's an expensive part, with part number 87161063540.
Thanks.
Now I assume I'm barking up the right tree here, the pump had 240v on the live and a resistance of 152 ohms. I think it looks like the pcb has failed on the pump, it also smells a bit strange.
Anyone know if this sounds correct and that only the original type pump is suitable? It's an expensive part, with part number 87161063540.
Thanks.