Boilermate 2000 will not fill up

Hi Mike, great site.

In my new house, the heating system was drained down and left unused for several months. Now, the Boilermate 2000 does not fill with water. A local plumber cleaned the header tank and pipes leading from it but still the Boilermate 2000 will not fill.

The downstairs radiators have filled up OK.

Is there any way of unblocking the Boilermate 2000 or introducing water into it some other way?

Many thanks.

Hi David (and others)

I'm facing a similar problem - I drained my system to replace the PHE sensor, but now it won't seem to fill back up. I've added the drained water back to the expansion tank, but the system seems to be airlocked (or similar).

I may have not isolated the PHE pump water valves before draining, so not sure if I've drained more water out of the system than I should have...

Any ideas?

Sorted this out by pushing water in to the drain valve next to the PHE sensor from a hosepipe (off the domestic cold water supply).
That seemed to clear the blockage / airlock, since the level in the expansion tank dropped down a fair bit underneath the overflow pipe (where it had been sitting previously).
All looking good for now!

(ps - it's brilliant that these forums exist, and have such a great level of input from all contributors!)