Jump to content

Book washing machine & appliance repairs Buy appliance spare parts

Note: The links above are needed to help keep this site running, please consider using them.

Iain C

BOSCH WVG30461GB WASHER/DRYER NOT DRYING

Recommended Posts

My Bosch WVG30461GB has twice in the last month stopped drying clothes, both times I've removed the top cover from the machine and pressed the small switch between the two green connectors in the photo which has reset the machine and solved the problem.  I know how to fix it but don't know why the switch (presumably some sort of overheat safety device?) is tripping in the first place, can anyone help?

RESET.jpg

Share this post


Link to post
Share on other sites

Book washing machine & appliance repairs Buy appliance spare parts

Note: The links above are needed to help keep this site running, please consider using them.

Hello Iain. You are right to be concerned. If it trips out once and then carries on OK after resetting that's one thing, but if it trips out more than once there is clearly something causing overheating. I have an article here about a washer dryer (or tumble dryer) not heating which includes a section on tripping TOCs. See if it helps. On a washer dryer it can be caused by overloading, or the water not trickling into the condenser, or being blocked from running into the drum, or a faulty dryer fan  - or even a blockage in the condenser or heating element compartments.

Share this post


Link to post
Share on other sites

The problem continued so suspecting a faulty sensor I decided to order a replacement Temperature Limiter from Partsmaster for £33.29.  I fitted this but after a couple of days the same problem reoccurred.

It happened again today, so while I had the lid off for the umpteenth time to reset the limiter I decided to bite the bullet and dismantle all of the hot air extraction ducting and extraction fan housing.  There were a few bits of fluff in the ducting itself but the extraction fan was another story, the gaps between all of the fan blades were clogged solid with fluff/lint, it is no wonder the sensor was tripping due to overheating as the fan will have been barely drawing any air in this state.  After about an hours work with a pair of tweezers I had cleaned the fan out and had collected the dish full of fluff in the photo.  I expect the drying performance of the machine to improve dramatically after this clean out, and presumably the temperature limiter trip problem should now be sorted. 

Fan before.jpg

Fluff.jpg

Share this post


Link to post
Share on other sites

Hello Iain. Excellent work.

BTW my spares site 4Washerhelp has the exact same parts available at the same prices (Bosch Temperature Limiter). Both sites are run by the same company only if people use 4Washerhelp I get some small commission which helps keep my sites running. Just out of curiosity did you see any link on my forum to 4Washerhelp - or do I need to make them more prominent? Cheers :)

 

Share this post


Link to post
Share on other sites

Hello Andy,

No I didn't see the link from the forum, though I did come across your site (and maybe one other very similar?) while googling for parts suppliers and noticed that apart from the top banner the sites appeared to be the same.

I can't say I'm impressed with the Bosch design - the appliance is only around 18 months old but I had noticed a deterioration in drying performance from when we first bought it. Surely Bosch can't expect customers to inspect/dismantle their machine once a year in the way that 've just had to do to keep it in decent running order?  I can manage it as I consider myself reasonably handy with a set of screwdrivers, but there will no doubt be many others with the same issue who will end up paying extortionate fees for a Bosch engineers visit to do the same job.  I'm a bit cheesed off that I spent £40 needlessly on a replacement sensor (obviously this could have been avoided if I'd made the effort to trace the cause of the impeded air flow earlier), but also that we'll have been using a lot more electricity to essentially 'steam' rather than dry our clothes for the past six months or more.:angry:

 

  • Like 1

Share this post


Link to post
Share on other sites

Thanks. I have just a small list of affiliate inks after the first post on every topic and 2 links in my sig. I was hoping they'd still stand out instead of banner ads. Just double check the instruction book btw way to ensure there is nothing you need to do to help keep the parts clear. With a normal dryer there are several filters to clean out but with washer dryers there isn't anything you can normally do. I think I've heard of a special maintenance cycle but I might have imagined it. If there's nothing you can do and it clogs up regularly I would say that's a design fault.

Share this post


Link to post
Share on other sites

Ok so I have an identical machine, and after many months of poor drying tried this and exactly the same , the fan impeller was totally clogged !! Are all washer driers prone to this , or is it a particular issue with this machine?

if this is an issue then a user cleanable filter should be installed , I'm gong to need to be doing this every year or use a separate dryer .

Does anyone know of an easy solution as I had to remove all the top ducting and control panel to access the fan. I wpold say beyond the skill set of most users .

 

Share this post


Link to post
Share on other sites

No other option I'm afraid but to strip it down and clean it yourself, I'm having to do it about every six months but the frequency will obviously depend on how often you use the machine for drying.  Bosch engineers must be kept going by customers who have the same problem but are none the wiser.

Share this post


Link to post
Share on other sites

If this is something that is happening regularly then it could be argued that it is a design flaw. The way that a washer dryer works makes it impossible to have a filter in the drum like there is on a tumble dryer. Unfortunately fitting a filter elsewhere is probably tricky. Manufacturers are not going to fit a filter which needs cleaning by customers that is only accessible by taking off the lid and messing around with the insides.

It is possible that this only happens if the dryer is overloaded. I'm not saying that is definitely the case. But I would strongly recommend that you get hold of the instruction manuals for these machines and thoroughly read them with regard to using the dryer. A washer dryer typically can only tumble dry half of the load it is capable of washing. Therefore every time you wash a full load, when it has finished spinning you will have to take half of the load out. If this isn't being done, all it is being inadvertently overloaded on the dryer cycle, it will drastically interfere with the efficiency of the dryer. It would interfere with the airflow, and it will certainly cause the laundry to take much longer to dry.

For me this could theoretically cause extra damp conditions inside which may allow the fluff that should end up being pumped out down the drain to stick to the sides of the fan chamber and fan blades. The fan blades might be getting wet through with condensation and excess moisture.

Share this post


Link to post
Share on other sites

That's exactly what we do, wash a load then split it and do two dries. 

I don't see what difference the amount of washing being dried would make anyway, the way the condenser drier works means that the hot air being drawn off from the drum is always going to be saturated with water vapour, particularly at the start of the drying cycle when the washing is at its wettest.  The problem is the free fibres that are released during the washing cycle and also the drying cycle aren't prevented from getting to the fan, but as you say there's no easy way of putting a filter anywhere in the current air draw off ducting between the drum and the fan that wouldn't still require removal of the lid for user access. Other than a complete redesign to put a filter on the front or back of the machine, I can't see what can be done other than to accept that it's a flawed compromise which doesn't work.

Share this post


Link to post
Share on other sites

Hello Iain. If the drum is overloaded during the drying cycle then air cannot flow properly through the whole system. You will get a big buildup of steam. Air is sucked in from the fan on top of the drum, and blown over the heating element. From there it should blow down into the drum and through the laundry. The hot air should then go through to the condenser chamber at the back of the drum when it hits a flow of cold water trickling inside. Should then condense into steam and get pumped out down the drain. In theory there is no need for fluff off the laundry to get onto the heating element. Don't forget this is not a complete cycle like it is on a tumble dryer. The air that is drawn in and blown over the laundry should pass through the laundry and out through into the condenser chamber. It shouldn't recirculate back to the heating element. Therefore I am guessing that this sort of problem would be much worse if the drum is overloaded.

If you know you are using it correctly but this problem is a constant issue then I would say it is a design fault.

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now

×