Potterton Promax HE 15/2 boiler - need for pump overun?
Recently moved in and inherited a newish potterton promax 15/2 HE boiler, it does not appear to have a pump overun function is this due to a bad electrician or because it has an aluminium heat exchanger so doesn't need pump overun?
Interested in anyone's thoughts for peace of mind.
howtomendit.com for free repair help, information and advice.
