The Potterton control knob is located on one of the spindles on the front of the appliance and allows the user to manually control certain aspects of the appliance's functionality. Some boilers allow the user to change the temperature and even the current function. This means the user can have the boiler provide central heating without turning on the hot water and vice versa.
Fits a number of Potterton and Main appliances
Colour is Grey
Technical specification
TypeControl KnobManufacturer Model No5409681Brand NamePotterton