Bosch WFT2800 Wets Clothes as it “Dries”!

[Bosch Bish]

I have a Bosch WFT2800 (washer/dryer) that no longer dries. The clothes come out wetter than when they went in. The condenser’s not blocked and nor are any pips but I’m thinking it may be the drain pump not shifting enough water before water is re-sprayed into the condenser. Anyone have any ideas? The washer seems to crash quite frequently with error code 1 (drain pipe / suds pump) so this may be related. If I purge the drum (wash code 7) then the drain pump seems to be working fine but I can’t think of anything else. Please help!

If it is the drain pump, how do you replace it??

🙂

TIA

John

[gegsy]

Re: Bosch WFT2800 Wets Clothes as it “Dries”!

Hi
You’ve checked pipes for blockages and where empty hose goes to aswell?

If you could supply full model number; around door and on rear.

Thanks

Greg

[Bosch Bish]

Re: Bosch WFT2800 Wets Clothes as it “Dries”!

Hi

I’ve checked quite a few of the pipes for blockages, the more accessible ones (main pipe from bottom of drum to pump, pump to outlet, outlet to waste), and found nothing. The machine seems to empty ok when it needs to (e.g. when pumping out (program 9) or cleaning the dryer (program 7)). When the drum empties there’s a good flow of water out the outlet pipe. It’s only when “drying” that it can’t shift the water and I’m confused.

What’s also odd is when drying for 15 mins or so, the clothes are dryer but the longer they dry the wetter they get. After 45+ mins there’s a pool of water in the drum and the clothes are drenched. Could it be that the water just builds up and after x mins the level is sufficiently high to reach and wet the clothes? Any help is appreciated.

The (partial) model number is WFT2800GB/13 (but I’ll get the rest later if it’ll help).

Thanks for any help you can offer

John

[Martin]

Re: Bosch WFT2800 Wets Clothes as it “Dries”!

John,

This is an odd fault I must admit 😉 Now almost always the fault you describe is due to pump failure, what is odd is that on the dryer ‘service wash 7’ the pump appears to drain out OK?…very strange.

Now as you may know during the drying cycle a trickle of water flows through the condenser. All the while the dryer operates water flows through that condenser, the pump should be running and you should observe a trickle of water coming out of the drain pipe?

I guess that is not happening in your case and possibly the pump is not running for some reason? Which brings me back to my first point about a likely worn out pump (it should be by now as its old enough!)

Hope that helps?

[Bosch Bish]

Re: Bosch WFT2800 Wets Clothes as it “Dries”!

Hi

At least I’m not the only one confused! 🙂 As a further complication, water does trickle from the outlet during drying but I can only assume what’s coming out is less than what’s going in and it backs up into the drum. I agree it seems like a worm pump.

I’ve had the top and back off the machine but the pump’s at the front. Any idea how you take the front off?? There are a few obvious screws for the front panel but I’m guessing there are more behind the dials? Also, the main drum-to-door seal looks to be a flexible plastic ring. Does this just prise off? Does the door just pull off after the screws have been removed? Sorry, so many questions!

And as for a new pump… BoschAppliances.com? Does anyone know of a cheaper/better source?

I’m pretty amazed that I’ve had a response to my question, and so soon, this site is a godsend! After all the searching I did on the net before this…

Thanks

John

[Martin]

Re: Bosch WFT2800 Wets Clothes as it “Dries”!

Bosch Bish wrote:There are a few obvious screws for the front panel but I’m guessing there are more behind the dials?

There’s a screw adjacent the dispenser aperture 😉

Bosch Bish wrote:And as for a new pump… BoschAppliances.com? Does anyone know of a cheaper/better source?

Click here for just what you need!

[Bosch Bish]

Re: Bosch WFT2800 Wets Clothes as it “Dries”!

Thanks for that! Don’t suppose there’s a service manual or more detailed instructions on gaining access to and removing the drain pump?? I just need to know what’s supposed to budge and what’s not.

Thanks

John

[Martin]

Re: Bosch WFT2800 Wets Clothes as it “Dries”!

You’ve figured it out so far and if not you are getting ‘very warm’ in your assumptions as to how to access. 🙂

Don’t forget the wire spring clip on the door seal 😉

[superfix]

Re: Bosch WFT2800 Wets Clothes as it “Dries”!

It’s either a bra wire or other such foreign object stopping the eco-ball sealing up, or a problem with the quad valve sticking and letting too much water in at the end of the dry cycle.

Quad valve sounds more likely given that you say it all seems dry with 15 minutes left.

[Bosch Bish]

Re: Bosch WFT2800 Wets Clothes as it “Dries”!

Thanks! Another avenue to explore. 🙂

When I cleaned the main drum-to-pump hose the rubber seal by the ball was rather caked but I cleaned it up and the problem still remains.

I don’t actually know what a quad valve is or where. Can you shed a little more light??

Thanks

John

[Penguin45]

Re: Bosch WFT2800 Wets Clothes as it “Dries”!

“Quad valve” is the 4 way inlet valve attached to the cold fill hose.

The valve should allow approximately 1 pint per minute to enter the machine as part of the drying process. By the same token, you should hear the drain pump pulsing once every minute or so.

One thing that has not been mentioned so far is that the drain hose is routed via an air break – this is a tubular assembly in the rear left corner of the machine. It can fill with fluff if the dryer is used regularly; equally if you are in a hard water area it can fill with chalk flakes or even old soap. If connected to a sink coupling, this can choke as well.

Based on what I have read so far, I would go with the pump wearing out. This is a “magnetic” type and the rotor is prone to wearing in its housing. If any lateral play can be detected if you try and wiggle the impellor from side to side, it needs replacing as it will be intermittant in operation.

HTH,
Regards,
Penguin45.

[Twoten]

Re: Bosch WFT2800 Wets Clothes as it “Dries”!

Something else you can try:

Put the machine on to dry and monitor the water draining following penguin’s guide as to what the pump should be doing,

The valve should allow approximately 1 pint per minute to enter the machine as part of the drying process. By the same token, you should hear the drain pump pulsing once every minute or so

Does the machine stop draining for a logger period that above?

Does the inside of the door glass have water running down it after about 15 minutes?

[Author]

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