I keep getting the F4 error and have looked at some of the responses on here.It looks like either a pressure switch issue or drain pump, but where is the pressure switch located?

John C, June 2009

On what? There are many different makes & models of dishwashers. We don't know which one you have. Each have different parts & parts in different locations. Some have pressure switches & some don't. F4 can mean one thing on one machine & something different on another. Help us & then we can help you.

Lincoln Appliance NZ, June 2009