my vokera exel 80 sp does not heat the upstairs water?
 
                Hi, I am having problems with my hot water teperature, downstairs the water is warm, not as warm as it should be and upstairs is not as warm as downstairs, I have had the diaphram replaced also the the divertor valve has had a service kit  fitted, anybody any ideas?
Cheers Jim
            
             jim
            
 January 2010