Bosch sms40c02GB – E25

[AshSplash]

Hello guys!

I’m hoping you can help with my Bosch Classixx sms40c02GB which is presenting an E25 error mid-cycle.

I understand this to be a drainage issue so I’ve done the following so far:

• Cleared out the drainage pipe and waste pipes behind the machine (nothing crazy, but definitely needed a clean!)[/*:m:7hsqvmnt]
• Inspected the sump from inside the machine, I removed the white impeller cover and ensured there was no grit or glass etc (all clear).[/*:m:7hsqvmnt]
• Dismantled the machine! Removed the drainage pump to feel around for blockages (all clear).[/*:m:7hsqvmnt]

The error still occurs after the above so I’m thinking the pump itself is the issue. I tested the resistance across its terminals with a multimeter and it gave a reading of 117. I couldn’t find any expected results for this model online. The only one I could find was for a “standard dishwasher drainage pump” which was 140-160. I would have thought if it was dead I would have expected it to be lower than 117 though, am I right? It also spins freely (should it?).

The metering / mixing tank on the side also looks like it’s full of spaghetti! But I think that’s unrelated (correct me if I’m wrong).

Many thanks in advance!

[electrofix]

Re: Bosch sms40c02GB – E25

when the error happens is there still water in the machine ?

also have you checked the plumbing ? a lot of dishwashers connect into a sink and it can be blocked there

Dave

[AshSplash]

Re: Bosch sms40c02GB – E25

Thanks for your reply electrofix, good question, I normally just tell it to try again (it sometimes works on a quick wash). I’ll run it again now and come back to you.

Yep I completely dismantled all the waste pipes behind the dishwasher, all fine.

[AshSplash]

Re: Bosch sms40c02GB – E25

I can confirm there is water sat in the bottom of the machine when the error occurs.

[electrofix]

Re: Bosch sms40c02GB – E25

well it could be a blockage

and may be the pump. not heard of these pumps failing this way. normally you go to start a programme and it aborts without filling

try operating the unit with the hose into a bucket or over the sink.

is the waist hose down a Stanchion pipe if so make sure it is only inserted the first 8 inches or so. if the pipe ends up in standing water it can cause problems

Dave

[AshSplash]

Re: Bosch sms40c02GB – E25

To close this topic off, the dishwasher has been working faultlessly since the first of March.

electrofix, it is in a Stanchion and I believe it was sat all the way down. I’ve used some string to hold it much higher and everything seems good!

I was too quick to jump to the pump I think.

Thank you!

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