My central heating seems to work ok but the hot water is not working comes on for about 3 seconds then goes of. the temperature reads 65 and the bar stays between 0-1. Water pressure is quite slow . There is also a very low ticking sound .Can anyone pin point what it might be i have read a few previous post which sound similar to my problem and it seems to be either the diverter valve diaphragm split or the temp sensor.
