I have recently had a number of problems with my heating system. Basically I can get heating upstairs or downstairs but not both at the same time. The problem seems to be related to the return pipe to the boiler which is just getting warm. I think that there may be a blockage in this pipe. I put Sentinal X400 in the system on Saturday and this if anything has made the problem worst.
Would power flushing work and clear the blockage?
Would power flushing work and clear the blockage?