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I have a Bristan Artimus thermostatic shower which will not get hot. I have removed debris from the hot and cold filters, no improvement. I have taken out the cartridge that regulates the temperature, this too had a build up of deposits from hard water, washed in vinegar/water solution, replaced...

Read article May 3rd 3003 I have almost the same problem. Chris R sorted out 'Klunk' can he or others help me. Changed to a Tempus 7 from an old 800 series timer. Did not mark wires. The pump and boiler are wired to the clock, the divert valve (see picture) has 4 x coloured wires including...

All radiators okay apart from bathroom, I have replaced a portion of pipe with 15mm to 10mm as a kink was suspected of causing poor flow. Prior to connection, pushed a wire down the 10mm clearing out sludge. I have put flushing fluid in the expansion tank, and am due to drain down. since then...