Worcester G* Cdi 37kw... Luke warm DHW

[Hobo128]

Hi guys...
Happy New year to you all....
Been out to a Worcester Greenstar Combi last week.... Problems with hot water not getting very hot.... Boiler is set to max on and I'm getting about 40 degree out of the tap.... Turned of the flow and return at the boiler to check diverter but this made no difference.... Should I change the plate to plate.... Thanks

 

[ShaunCorbs]

Your return temp back to the heat exchanger (boiler)

should be at the same temp as your hot water out

 

[Scott_D]

what floe rate and temp increase are you getting with 40 degrees?

 

[Aquarius]

Have you tried it on reduced flow of hot tap?

 

[Hobo128]

Sorted it.... Flow rate was to high and also burner was very dirty... fan pressure test proved this.... Cleaned it and adjusted the flow rate.... seemed to sort it... thanks