bizzare the shower isnt an electric shower is it if it is it will only be running off the cold water any way and it would most likley be the element gone...not good better off getting a new shower not electric thou as you have a combi boiler and no need for electric as it will run straight from hot and cold off the boiler s...hope this helps a littleo as long as the taps are hot your shower will be to
sdi major, February 2011