Turn up the dial on the front of the boiler with the"tap" simbol on it, if this is already on full, then it sounds like your DHW thermister is out/gone/broken, either that or just dont open your hot taps as much
LTGF
November 2008
Hi I don.t know if you have the same problem as me.The hot water will not get very hot anymore despite control being turned up.The radiators are ok.
I have been told by a gas fitter it is the diaphragm.
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