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:twisted: we have a Worcester Bosch boiler, 2 years old. It comes on for a few minutes and then the red warning light flashes, not sure what this light means. Got a plumber round who replaced the gas valve, and serviced the boiler, but the red light was still flashing.He seemed puzzled, so he...

having tiled the bathroom, and I admit it took 7 weeks, I now have a lot of grout residue on the tiles that has set sort of solid and streaky. I suppose I should have cleaned as I was doing it, but I :cry: didn't. So what's the best thing to remove it? I have tried a scouring pad, glass...

vaillant boiler 25yrs old, recently the water is not very hot once the CH has gone off, fine when it is on. Have cleaned the diverter valve, but makes no difference. Any ideas, I dont want to buy a new boiler, which is all the suggestions I get from experts!