Bosch Dishwasher Fault E:24

ablelocks

before I call the Bosch engineer in, is there anything else I can try to fix this fault on a built-in Bosch Dishwasher (it's out of warranty)? E:24 error message means the water isn't fully draining from the dishwasher at the end of a wash cycle, so when I go to start a new cycle it will attempt to start and then stop with the error message. Before a new cycle can be started, the water in the drain sump needs to be manually removed.

All the filters are clean, the impeller is free to rotate, the cover to the impeller is fully clicked into place.

The pump probably needs to be replaced, but just in case it's the drain pipe that is blocked, is there any solution that I can pour down the drain that will clear it without damaging the dishwasher? I assume all the commercial drain cleaners are not suitable?

You could always try removing the drain pipe (I assume you mean the flexible drain hose) from the dishwasher and push it onto a tap and flush water through it.

ablelocks

Deleted User wrote: »

You could always try removing the drain pipe (I assume you mean the flexible drain hose) from the dishwasher and push it onto a tap and flush water through it.

it's a built in unit so no access to remove the drain hose

The Red Ace

Dolanbaker ,actually you cant flush a d/w like that because the pump has a non return flap that wont let water back in, OP is the d/w trying to pump with the door open? (if so it has water in the base plate) if you think the pump is clogged up its accessible from under the filter once you have removed the water in the sump, it may have one screw holding the pump cover in place that you need to remove to inspect

The Red Ace

The Red Ace wrote: »

Dolanbaker ,actually you cant flush a d/w like that because the pump has a non return flap that wont let water back in,

OK fair point, I actually meant that if he disconnects the pipe from the unit (if possible) and flush just the hose.

ablelocks

thanks for the help guys...

The Red Ace wrote: »

Dolanbaker ,actually you cant flush a d/w like that because the pump has a non return flap that wont let water back in

this would explain why i nearly exploded trying to blow back through the drain hose!

The Red Ace wrote: »

OP is the d/w trying to pump with the door open?

No it isn't

The Red Ace wrote: »

if you think the pump is clogged up its accessible from under the filter once you have removed the water in the sump, it may have one screw holding the pump cover in place that you need to remove to inspect

there's a click in/off white cover to the impeller, which is clear of any debris. there's another grey cover over what I assume is the drain and this is also clear of any debris

you can see both in this youtube clip

The Red Ace

Run the pump with that white cover removed, its nearly always a bit of glass that sticks the impellar and it should spit it out with the housing removed, you should hear the pump run, if that machine is connected to a spigot off the sink remove it and check it for grease build up, otherwise it is strip down time, btw bad washing pump blockage etc is caused by not having the filter correctly fitted into position

ablelocks

ablelocks wrote: »

this would explain why i nearly exploded trying to blow back through the drain hose!

oops