turn off the hot tap remove from rear of machine ,put pipe in a bucket turn on tap inspect flow ,if insufficient check where the pipe has been joined into the system ( self cutting taps cause problems) if supply ok check filter screen located inside the rear of the hot tap connection remove and clean refit pipe try machine with cold supply TURNED OFF, no water input now means HOT WATER solenoid faulty needs to be replaced ,
wirecutterman (england), May 2008