Anybody know how to modify the factory set Hot water temperature from 60C to say 80C, it's set from 20 to 60C, is there a way to alter the user threshold voltage, which is by rotary potentiometer..the one on the right,,,ideally i need the circuit diagram, otherwise its re-engineer time!

The central heating temperature is factory set upto 80C, that's fine,.
PCB num
5121862

 

Not really adjustable on my heaters, other than to disconnect one of the elements -that only changes the wattage). What kind of heater do you have.

 

Its a Baxi combi, hotwater and central heating, model num Duo Tec He 24,

The hot water is adjustable upto 60C but it's not hot enough for a bath , and to get that temperature out of the tap you need to slow the water flow, which is a pain..


Boiler info......
https://www.baxi.co.uk/boilers/our-boilers/baxi-duo-tec-combi