Digital Spy

Search Digital Spy
 

DS Forums

 
 

Bosch dishwasher E24 fault


Reply
Thread Tools Search this Thread
Old 18-12-2011, 18:41
fat controller
Forum Member
 
Join Date: Oct 2005
Location: Slightly round the bend
Posts: 12,685

Our Bosch dishwasher (SMS50E06UK), has decided that it doesn't want to play anymore, and is showing us a fault code of E24 with the 'Check Water' light on.

Its never been great at draining, and we've seen this code a few times in its few short years, but usually we can clear it by emptying it out, and making sure the filters are squeaky clean and that the impeller on the pump is free to spin, That process is usually followed up by a cleaning cycle (Finish Cleaner), to make doubly sure that there is nothing to block things up.

We run a cleaning cycle on this machine regularly in addition to the above as well, so its not exactly neglected.

Yesterday, it wouldn't start when asked, giving a code of E24. I did the usual rigmarole, and finally persuaded it to run a pre-rinse cycle, which it completed fine, Tired to run a full cycle again - E24.

I gave up for the night, and tried again this morning, and finally got it to run a cleaning cycle, which it did all the way through with no problems; put a load in, put it on to wash, and it seemed to work fine, however it seems to have deposited some kind of gritty substance onto the dishes.

Put it on to try again, and we are back to the E24 message and not working - - we did see an E25 message once during this morning, but only once.

Googling tells me that this is telling me that either the drain pump or the drain filters are blocked - the filters are definitely clean, and the impeller of the pump (assuming that the pump in the sump is the drain pump?) is free to spin and is not clogged with anything.

Now, I am quite happy on the end of a screwdriver, but would be the first to admit that I have never as much as seen the inner workings of a dishwasher, let alone tried to repair one.

Is there anything I can try before resorting to a pro? (preferably without knackering anything or making things worse)

Or am I best just to bite the bullet and get someone in - if so, is Bosch themselves the best bet or should I look for someone locally? (any recommendations for someone in the SW London / Staines area?)

All advice gratefully received.
fat controller is offline   Reply With Quote
Please sign in or register to remove this advertisement.
Old 18-12-2011, 19:09
Cramps
Forum Member
 
Join Date: Nov 2011
Posts: 252
Could be that the drain pump is starting to fail and only does it after it gets hot. Or it could be fat in the drain pipe or the front internal sump hose amongst other things or a fault/blockage in the water level matrix etc...etc....

You won't know without looking.

Just remember to pull the plug first
Cramps is offline   Reply With Quote
Old 18-12-2011, 19:37
fat controller
Forum Member
 
Join Date: Oct 2005
Location: Slightly round the bend
Posts: 12,685
Are they easy to get into, as I can't see any obvious casing screws other than those up the sides of the front door aperture?
fat controller is offline   Reply With Quote
Old 18-12-2011, 20:09
Cramps
Forum Member
 
Join Date: Nov 2011
Posts: 252
Are they easy to get into, as I can't see any obvious casing screws other than those up the sides of the front door aperture?
Remove the door front by taking out the screws inside the door and then take off the lower plate and the pump should be sitting directly in front of you. Looking at it it should be one that you twist to remove and refit. Just remember to unplug it from the mains and that any water left in the hose on the sump will come out when you remove it.

Best to check the drain hose first for a fat build up.
Cramps is offline   Reply With Quote
Old 18-12-2011, 20:17
fat controller
Forum Member
 
Join Date: Oct 2005
Location: Slightly round the bend
Posts: 12,685
Thanks Best to give that a shot first before spending 120 to get Bosch out to look at it.
fat controller is offline   Reply With Quote
Old 18-12-2011, 20:18
Cramps
Forum Member
 
Join Date: Nov 2011
Posts: 252
Thanks Best to give that a shot first before spending 120 to get Bosch out to look at it.
No probs.

A new pump will only set you back 35.

Cramps is offline   Reply With Quote
Old 18-12-2011, 20:24
fat controller
Forum Member
 
Join Date: Oct 2005
Location: Slightly round the bend
Posts: 12,685
30 on espares , so if its only that, I'll be a happy man
fat controller is offline   Reply With Quote
Old 18-12-2011, 20:44
fat controller
Forum Member
 
Join Date: Oct 2005
Location: Slightly round the bend
Posts: 12,685
Is there a second pump somewhere in the left hand side of the machine?

I've just walloped a couple of litres of hot water into the sump, switched it on and heard it drain the lot out in seconds - then I can hear what sounds like a pump or motor trying to run (sounds like it is coming from the left hand side of the machine), which it tries twice before giving up.

I've checked, and the sump is all but empty again, so its definitely drained OK
fat controller is offline   Reply With Quote
Old 19-12-2011, 15:37
edgayton
Forum Member
 
Join Date: Jul 2003
Location: Lincoln
Posts: 233
I could be wrong but I seem to remember this was the code that we had recently on ours. It means that the dishwasher thought there was still water in the sump and kept trying to drain it. The solution was to tilt the dishwasher by about 45degrees and it cleared the fault. May be worth a go?
edgayton is offline   Reply With Quote
Old 19-12-2011, 17:53
fat controller
Forum Member
 
Join Date: Oct 2005
Location: Slightly round the bend
Posts: 12,685
I've had it out this afternoon, and despite not being able to get the lid off it (undid two torx screws at the back, but cannot for the life of me see how to get it to budge), I did get the left side panel off it - that would appear to be some kind of matrix of waterways, and there is one bit of it about halfway up toward the back that looks as though it could be blocked.

I took some photos, which I will post later this evening as I am just about to pop out.

Other than that, I had a play with the pipe that runs from the sump up to this flat matrix, and it seems to be clean and clear. I can see what I believe to be the pressure chamber toward the bottom, although cannot see how any of it would come out.

I can see me calling in a pro before long, as I don't really know what I am looking at, and to be truthful, don't really have the time to be mucking about with it - besides anything else, it wasn't a cheap dishwasher, so I don't want to bugger it through my own lack of knowledge.
fat controller is offline   Reply With Quote
Old 19-12-2011, 17:55
crazychris12
Guest
 
Join Date: Jan 2007
Posts: 23,649
How old is your Bosch FC? Ours is 12 years now and nothing erong so far...touch wood.
crazychris12 is offline   Reply With Quote
Old 19-12-2011, 21:00
fat controller
Forum Member
 
Join Date: Oct 2005
Location: Slightly round the bend
Posts: 12,685
Its 3 years old - only spent as much money on it because it was a Bosch, and I reckoned it would last.

Here is the image of the plastic matrix thing - it appears to be pretty full of water, but the thing that concerns me the most is the 'gunky' looking bit (near the bottom left on the picture)

Here is the picture showing the gubbins further down (I think the pressure chamber is hiding right at the bottom, approximately in the middle?)

I undid a couple of torx screws in the middle of the large plastic matrix, and gently prised a few clips down the edge - it moved a bit, but didn't seem overly keen so I left it until I can get some more advice.

Any experts in?
fat controller is offline   Reply With Quote
Old 19-12-2011, 22:56
Diamondl1fe
Forum Member
 
Join Date: Mar 2010
Posts: 1,528
I could be wrong but I seem to remember this was the code that we had recently on ours. It means that the dishwasher thought there was still water in the sump and kept trying to drain it. The solution was to tilt the dishwasher by about 45degrees and it cleared the fault. May be worth a go?

i was going to post this - our Bosch dishwasher kept showing the 'check water' warning. After much googling we pulled it out from the worktop and tilted it forward as far as we could, then tipped it back again and started it. Amazingly, it was fine after that.

Apologies if you've tried this OP.
Diamondl1fe is offline   Reply With Quote
Old 20-12-2011, 16:33
fat controller
Forum Member
 
Join Date: Oct 2005
Location: Slightly round the bend
Posts: 12,685
I could be wrong but I seem to remember this was the code that we had recently on ours. It means that the dishwasher thought there was still water in the sump and kept trying to drain it. The solution was to tilt the dishwasher by about 45degrees and it cleared the fault. May be worth a go?
i was going to post this - our Bosch dishwasher kept showing the 'check water' warning. After much googling we pulled it out from the worktop and tilted it forward as far as we could, then tipped it back again and started it. Amazingly, it was fine after that.

Apologies if you've tried this OP.
I love DS!!! I had tilted it a couple of times, but from the side - so I must confess to thinking "tried that" when I read edgayton's post. However, this morning, I re-read this thread at work (busy day - not ) as I was just about to give in and phone for an engineer. I read your post Diamondl1fe, and thought that it had to be worth one more shot, so held off phoning until I could get home and try it.

Having tilted the machine forward by 45 degrees, it is now sitting running quite happily - fingers crossed that it behaves from here on in - all I need to do now is screw the side panel back on and shove it back into its home next to the sink.

Thanks to all for the help and suggestions

Merry Christmas!
fat controller is offline   Reply With Quote
Old 08-06-2012, 17:00
fat controller
Forum Member
 
Join Date: Oct 2005
Location: Slightly round the bend
Posts: 12,685
This problem has resurfaced on numerous occasions over the past few months, and again today, and I have just spent nearly an hour farting about with this dishwasher to get it going (which I think it finally is).

Is there anything, other than sending it to the tip, that can be done to stop this from happening?

It appears that it is the anti-flood thing kicking in, as it will happily drain any water we put into it.
fat controller is offline   Reply With Quote
Old 08-06-2012, 19:50
Schadenfreud
Guest
 
Join Date: Feb 2012
Posts: 1,291
The anti flood device kicks in because..... ?

Water is in the base and it thinks the machine has flooded. That's why when you tilt the machine, the water in the base seeps out and resets the anti flood float.

You have to find out why water keeps getting into the base. Usual suspects are over sudding due to all in ones and using rinse aid, wash motor leaking around shaft seal, or a cabinet split.
Schadenfreud is offline   Reply With Quote
Old 08-06-2012, 22:42
fat controller
Forum Member
 
Join Date: Oct 2005
Location: Slightly round the bend
Posts: 12,685
The anti flood device kicks in because..... ?

Water is in the base and it thinks the machine has flooded. That's why when you tilt the machine, the water in the base seeps out and resets the anti flood float.

You have to find out why water keeps getting into the base. Usual suspects are over sudding due to all in ones and using rinse aid, wash motor leaking around shaft seal, or a cabinet split.
Where does the water seep out to though? It doesn't come out onto the floor or anything?

We do use rinse aid, as well as whatever tablets we get (usually Finish or Fairy) - should we not be using rinse aid with these then?
fat controller is offline   Reply With Quote
Old 09-06-2012, 00:08
Schadenfreud
Guest
 
Join Date: Feb 2012
Posts: 1,291
No, if you're using an all in one tablet, then it has rinse aid already in it. You putting rinse aid in the dispenser is doubling the dose.
Since RA causes a fair amount of sudding, twice as much will cause the machine to over sudd and sometimes this will spill into the base and activate the anti flood device.

A lot of people say 'well the rinse aid light is on' . Of course it damn well is, it can't tell that you're using all in one tablets, it can only tell that the rinse aid dispenser is empty. (bloody numpties!).

As for the fact you're seeing no water come out, it may be that there is only just enough water there to trip the float, and the fact that you move the water around when tipping it resets the float.
Schadenfreud is offline   Reply With Quote
Old 09-06-2012, 02:10
BeenieWazo
Forum Member
 
Join Date: Oct 2011
Posts: 209
I've not read the entirety of tis thread so if this has already been suggested - appologies.

My Siemens DW had a fault code recently suggesting some kind of water problem. It wouldn't reset - keeping the cancel button depressed for x amount of seconds so it was switched off at plug for 24 hours and the filter thoroughly rinsed and cleaned. Then switched back on with finger on reset button. Hey presto worked fine ever since.

Ok it's a Siemens but I'm sure they are the same as Bosch - worth a try??
BeenieWazo is offline   Reply With Quote
Old 09-06-2012, 04:18
Schadenfreud
Guest
 
Join Date: Feb 2012
Posts: 1,291
I've not read the entirety of tis thread so if this has already been suggested - appologies.

My Siemens DW had a fault code recently suggesting some kind of water problem. It wouldn't reset - keeping the cancel button depressed for x amount of seconds so it was switched off at plug for 24 hours and the filter thoroughly rinsed and cleaned. Then switched back on with finger on reset button. Hey presto worked fine ever since.

Ok it's a Siemens but I'm sure they are the same as Bosch - worth a try??
Not really no... nothing of what you said made any sense.
Schadenfreud is offline   Reply With Quote
Old 09-06-2012, 13:05
fat controller
Forum Member
 
Join Date: Oct 2005
Location: Slightly round the bend
Posts: 12,685
No, if you're using an all in one tablet, then it has rinse aid already in it. You putting rinse aid in the dispenser is doubling the dose.
Since RA causes a fair amount of sudding, twice as much will cause the machine to over sudd and sometimes this will spill into the base and activate the anti flood device.

A lot of people say 'well the rinse aid light is on' . Of course it damn well is, it can't tell that you're using all in one tablets, it can only tell that the rinse aid dispenser is empty. (bloody numpties!).

As for the fact you're seeing no water come out, it may be that there is only just enough water there to trip the float, and the fact that you move the water around when tipping it resets the float.
Thanks - so best to use no rinse aid rather than seek out tablets without it built in?
fat controller is offline   Reply With Quote
Old 09-06-2012, 17:04
Schadenfreud
Guest
 
Join Date: Feb 2012
Posts: 1,291
You will always get better results by using the machine as it was designed to be used. IE. with ordinary plain detergent, and a separate rinse aid in the dispenser.
Schadenfreud is offline   Reply With Quote
Old 09-06-2012, 20:10
fat controller
Forum Member
 
Join Date: Oct 2005
Location: Slightly round the bend
Posts: 12,685
Thanks - I'll look out for tablets without rinse aid
fat controller is offline   Reply With Quote
Old 04-08-2012, 10:04
fat controller
Forum Member
 
Join Date: Oct 2005
Location: Slightly round the bend
Posts: 12,685
Thought I'd update this in case anyone searching has a similar problem. I ended up getting my head right inside the dishwasher with all the filters removed, and noticed that the plastic cover that sits in front of the drain pump impeller wasn't sitting properly (it was sitting a bit proud at the top, and the locating lug wasn't in line with the hole it should be in). I removed the cover, and noticed that it was no only mis-shapen (slightly bowed) but that the outer edge of it was also chittled away, obviously where the impeller had been striking it.

I ordered a new cover from espares, and fitted it in seconds the day it arrived - and since then, there has not been one single problem All fixed for just over a tenner
fat controller is offline   Reply With Quote
 
Reply



Thread Tools Search this Thread
Search this Thread:

Advanced Search

 
Forum Jump


All times are GMT +1. The time now is 16:40.