The Potterton air pressure switch is a safety device which checks that the fan is fully operational. It ensures that, if the fan fails within the boiler, there will not be a build up of noxious fumes with no means of removing them safely.
Fits a number of Potterton appliances
Technical specification
TypeAir Pressure SwitchCompatible WithProfile 100E and Profile 100E LPGManufacturer Model No642216Brand NamePotterton