I found that on draining my system the level of the expansion tank does not change, although water does run out from the drain plug at ground level.
I have opened all the bleed screws in the radiators.
The cold water feed goes direct to the boiler which is a NetaHeat however to gain access to the pipe inlet into the boiler I will have to remove the boiler off the wall which I do not want to do.
The system has been in place approx 20 years and I last drained it approx 2-3 years ago.
Would it possible free the blockage if I connected water to the vent outlet which overhangs the expansion tank.
I have opened all the bleed screws in the radiators.
The cold water feed goes direct to the boiler which is a NetaHeat however to gain access to the pipe inlet into the boiler I will have to remove the boiler off the wall which I do not want to do.
The system has been in place approx 20 years and I last drained it approx 2-3 years ago.
Would it possible free the blockage if I connected water to the vent outlet which overhangs the expansion tank.