Miele WT945 discharges water into bottom of machine from lower condenser hose after final spin?

[Brianmered]

The washing machine performs all functions correctly but after the final spin and prior to drying cycle, about a cup full of water is discharged through the open end of the lower rubber condenser hose (item 32) into the bottom of the machine? There is no catchment so ultimately it ends up on the floor.

[Whitegoodshelp]

Hi. I have to admit I can't think of a reason why a hose would not be connected to anything and just dangle into the base of the machine. 

[Brianmered]

37 minutes ago, Whitegoodshelp (Andy) said:

Hi. I have to admit I can't think of a reason why a hose would not be connected to anything and just dangle into the base of the machine. 

It certainly has me stumped! I was thinking about extending the hose to the outside of the machine and into a drain connection but it's bugging me that I can't understand why the hose goes nowhere, a breather of some description!

[Whitegoodshelp]

Can you see what the hose is called? Its name may give a clue. The only thing I can imagine is if it sucks air into the fan but it still seems bizarre that it wouldn't be connected to something. 

I presume there's nowhere it could fit to and no evidence it ever had a clip or clamp. 

It also seems too long to just suck air in. They could easily have a short hose that just connected to the back of the appliance. I can't believe they would design it to leak water (even as an overflow) to let water into the base. 

Also, if water is inside these hoses it could be due to restricted airflow and blockages in the dryer parts causing condensation. 

 

[Brianmered]

Thanks for your reply.

Both parts 31 and 32 in the previous diagram are described as 'hoses'. Yes really!

The other end of Hose 31 connects to the rear of the detergent dispenser and its not conceivable that water can run into it while the machine is filling.

The condenser is cooled via two small hoses (21 & 22) from the cold water supply solenoids which you can see at the top of the diagram. The discharged water is clean and occurs when the final spin is completed regardless of whether the drying function s selected or not!. I'm planning to take another look next week when I have a bit more time!

Edited March 9, 2025 by Brianmered

[Brianmered]

Thanks for your reply.

The machine has never been touched since we purchased it so no modifications have been made and yes the hose is open ended and secured to the back of and just below the drum assembly.

Both parts 31 and 32 in the previous diagram are described as 'hoses'. Yes really, so no clues there.

The other end of Hose 31 connects to the top rear of the detergent dispenser, horizontally and not vertical as shown in the schematic.

The condenser is cooled via two small hoses (21 & 22) from the cold water supply solenoids which you can see at the top of the diagram. The discharged water is clean and occurs when the final spin is completed regardless of whether the drying function s selected or not!. I'm planning to take another look next week when I have a bit more time and try and figure the condensation paths!

[Brianmered]

Still waiting on a reply from Miele and a week later still heard nothing from them! In the meantime can anyone explain why there are two water connections to the dryer condenser? One is for cooling the condenser during the drying cycle so vapour condenses more readily, however, I can't figure why the second connection!, possibly some sort of over-engineered fluff backflush? I would welcome any thoughts

[Whitegoodshelp]

Hi. Could it be to flush water in on a maintenance cycle to try and prevent a build up of lint? Is there anything in the manual about doing a regular maintenance cycle?

[Brianmered]

Hello again Andy,

 

I received a reply from Miele technical support and they confirmed that the first solenoid supplies cooling water to the condenser during the drying cycle and the second solenoid is a fluff back-flush. Now I have to figure out why the water is passing through the condenser and ending up on the floor even when no drying cycle is selected. From the schematic I would imaging it passes through the housing item 1 in the 1st schematic and passes back into the drum via the connector item 3.

It occurs at the end of the wash cycle when about 1/2 litre of water spills through. I attached a short video and you can hear the end of wash cycle alarm sounding! 

 

Any thoughts?

[Whitegoodshelp]

Hi thanks for the update. Unfortunately I'm not familiar with this setup. I still find it hard to believe that Miele would create this design that allowed water (presumably under certain circumstances) to flow at such a rate into the base of the washing machine. Surely any overflow should run into the top of the tub where it could be pumped out?

Are you saying that this water runs out of that tube continuously while ever the dryer is running? In other words the water going in to the dryer condenser chamber is somehow running straight back out of this tube? If so, then the only explanation that makes any sense is a blockage somewhere.

[Brianmered]

Thanks for your thoughts, the water only flows (about 1/2 litre) following the final spin cycle. You can hear the washing machine sounding the finish alert on the video. I think the back-flush water should flow through the condenser housing to the bottom of the drum where it enters the drum through item 3 which is the suds seal. I'll check to see if I can find any blockage in that line. 

I have written to Miele again asking if anyone has experienced this fault previously.

[Whitegoodshelp]

Yes, a blockage somewhere seems the most likely explanation.

[Whitegoodshelp]

On 08/03/2025 at 13:13, Whitegoodshelp (Andy) said:

Hi. I have to admit I can't think of a reason why a hose would not be connected to anything and just dangle into the base of the machine. 

I watched an official Miele video the other day and sure enough there is a hose that just hangs open in the base of the washing machine!

[Brianmered]

Hello Andy, thank you for following up and letting me know even if it gets me no nearer tp the answer! I have just ordered and received a new water distribution solenoid so when I fit it I'm determined to have another look at the mysterious open hose and see if there is any blockage causing the overflow. I'll let you know if I find anything!