Search results

There is no noise at all, the pump sounds fine, and it does not matter how many times I stop/start pump and bleed system, it reverts back to the upstairs rads beeing cold at the top and no domestic hot water. The height from the pump to the upstairs rads is just on the 6.0m limit, so I am...

I have recently replaced my grundfos circulating pump because the upstairs rads did not stay hot even after bleeding the system fully. The rads only stayed warm at the bottom when you switch on the pump again. The domestic HW also did not get hot from the boiler, only the immersion. One of the...