Why Does my Shower not work Properly?

Check the thermal cut out they often go faulty also any micro switches connected to the pressure switch

RS
September 2004

I think reading between the lines what yopu are saying is when the fuse is put in circuit, the shower will work, but only provides cold water, no heat. If this is the case, I would put my money on it being the heating element. If so you'll need to replace either the water cylinder with the element or replace the shower depending upon what works out cheaper.

Mike
September 2004