Divertor valve issue ideal instinct

[Matt0029]

I went to an ideal instinct were the hot water was cycling hot and cold. Upon inspection the flow pipe on the boiler was getting hot instantly as the hot tap was run. Indicating the divtor valve isn't moving all the way across when there is a hot water demand. I have past the job on to ideal as its under warrenty. Anyone had this fault before on this type of boiler? Which part of the divertor valve needs swapping? Just the actuator?

 

[garygvl]

if flow pipe getting hot instantly on hw demand with no heating on more than likely a blocked plate.

 

[king of pipes]

Whip the plate out Matt have a look in it bet there's a restriction of some kind , before you go swapping parts try my quick fix blast it out at your local car wash you will see the crap come out . Kop