Re: WHIRLPOOL DISHWASHER ADG4952M F4 FAULT
OWI is optical water indicator, this is a sensor, circular in shape in the right hand side of the sump. it measures water flow i believe, i think i had a fault once where i only had to clear blokages in the spray arms to cure it, it just allows the water to run through the system faster.
having said all that, i think this model is fitted with a pressure switch. same position as the OWI would be. they get blocked up with gunge.
if you get me the service number i will be able to tell you whats fitted