I have a dishwasher that is stuck in mid program, on the 30 minute quick wash a small number 1 is flashing beside the 30 minute count down timer display. the machine is making noises but not washing
I have checked that the outlet hose is clear and the water inlet hose has water pressure

Frank Farrell, February 2009

Error code I 20 on my zanuussi zsf 6161 I've checked all filters and sink spigot and drain hose

Martin, June 2020

i30 is a fault code and may be what you are refurring to as a 1.it means there is water in the base. tip machine backwards and get water out.this should reset it and make it work.if it does it again in a short time you may have a leak and you will need to find out where from.

ck, February 2009