Samsung auto dosing washing machine not dispensing softner

If it is not a blockage, it could be failure of the auto dose pump gasket.

I was reading about auto dose a few weeks back, and there's a thread on Samsung's community website showing a deformed pump gasket. Possibly they've made a poor choice of material for the seal, fabric conditioner could cause some types of rubber to swells up.

used housing with pumps on ebay, but I suppose buying secondhand is you dont really know if its not got the same issue.

https://www.ebay.co.uk/itm/195740208377

All, thanks for the replies and advice

After having a look, it was a deformed pump gasket. I've managed to find a new pump on ebay as it seems impossible to get a replacement gasket

Regards,

Liam

I wonder when the gaskets have deformed like this on the autodose pumps that you can get some of this instant gasket in a tube (from motor factors or someone like Halfords) and make a new gasket and it work?, i cannot see why not

Possibly, but if the pump is made from a "waxy" low surface energy type of plastic, then you might need to pre-treat the surface with a LSE plastic primer if you need the sealant to stick properly and give it the best chance of staying in place, The plastic casting may be marked with letters to indicate the type, if not water will bead up on LSE plastics.

Cutting a gasket from a chemical resistant rubber might be worth a try, but that's only easy if you can get away with a bit of overhang each side of the join without fouling anything.

Another option might be an O-ring.

Good suggestions thanks. Hopefully you can buy a proper part from Samsung. It would be unacceptable for them to not have it available. I’m sure they have to keep parts for at least 5 years after production.

Also, how do you think the bad seal prevented the detergent being administered?

Totally agree, the OP could check theirs for a label with the part no on to see if it is the same pump as in samsung's other machines, part no is DC97-19821A, which seems to be readily available,

https://www.samsungspares.co.uk/laundry/washing-machine/dispenser-pump/product.pl?pid=5345648&path=627424,627463&refine=dispenser

Seem to be quite a lot of negative reviews about the seal failing too, so you'd think they'd make replacement gaskets available, instead of replacing a £100+ part.

I believe those pumps draw the detergent and conditioner out of reservoirs in the draw and squirt it back into draw compartment, and with a leaking seal the pump wont suck. I thought at first the seal had swollen a bit, but from a closer look I think it might have gone so soft it has totally misshapen, arguably a design fault, so there ought to be a free fix.

Thanks Mels. Personally I hate autodosing systems. They only use liquid detergent, which I believe is inferior to powdered detergent and leads to clogging with gunge and slime, and it makes washing machines more expensive, more complex and less reliable.

Completely agree with you, I wouldn't want one, also having read about the issues they can cause, I wonder if the added convenience of not having to put detergent in quite so often actually outweighs the need to regularly clean and maintain the auto dosing system.

I'm not a fan of liquid detergent, the only time we've had a foul smelling machine, which also deposited brown gunge on the washing was caused by one. The problem went away after cleaning the detergent residue, mould and the other gunk out of the machine (bleach and multiple boil washes!) and switching back to powder. Admittedly, that was in the early 90's and liquid detergents have now changed a lot.

Miele's system at least has a chamber for their hydrogen peroxide based stain remover, which should keep the machine sanitary.

One problem with liquids is you can't mix certain chemicals, like enzymes and oxygen bleach that can happily co-exist in powder form. The oxygen bleach stain removal ingredients in washing powder make peracetic acid in the wash, a highly effective biocide which helps to keep the machine clean as well as the washing.

I wouldn’t be surprised if the liquid detergent itself is the cause of these seals becoming soft and warping. That would be a design fault.

just commenting on our autodose Samsung machine , love it. One of the best washing machines we've owned (so far) reasonable price, not dear like a miele or other expensive brand. Great on saving liquid . 500euro we paid for ours you could pay that easily for a non auto dose washing machine but not only that it has so many other features along with it, Internet connectivity - hell it will even tell you through the app if your washing machine is working properly (if heater fails or door lock or some other hardware fault it shows up in the samsung smart phone app!) - even has a counter for amount of washes its done and then reminds you after a certain amount of washes that it needs a drum clean! - and remembers your most used wash programmes and shows up in the app how much memory they have used.

Have not had to use stain additives with the liquid , like we had to with the powder because the washing machine has many stain removing features , Bubble Soak for a start and intensive, wash and a recipe feature in the app that asks you what kind of a garment you are washing and how soiled it is then adjusts the machine / wash cycle to suit best to clean the clothes and stains.

Even has a seperate compartment to add Powder in the soap drawer if we want to and turn off the autodose feature if we want to carry on using powder instead. Best of both worlds.

its pretty good machine , cannot really fault it and especially for the price paid for it. -

I wouldnt trust these really really thick viscosity concentrated fabric softener in these autodose machines. I can just see loads of end users putting them in the autodose compartment and not watering/diluting them at all.

we are not that rich LOL so have always used the cheapy cheapy fabric softener (and detergent liquid) and they are really runny (like they are diluted already) since we have had our autodose machine.

if that were me and it was made from that kind of plastic material I would just get some sandpaper out and carefully sand the area where the liquid gasket was going to be applied to give it a 'key' first - that might work.

have had our Samsung autodose machine apart before and many plastic items stamped with 'ABS' (not too sure about the soap dispensing pumps though)

I wouldn't be surprised if at least some brands of detergents contain chemicals that are incompatible with whatever type of rubber they chosen, hard to check everything on the market. Some of the chemicals in fabric conditioner will definitely attack some types of rubber, and that seems to be the chief culprit.

Blockages from the detergent clogging seems to be another issue with some machines, especially if the auto dose hasn't been used for a while. There are youtube videos of one or two Miele's where the detergent, or stain remover has leaked and written off the machine. The stain remover which contains an oxidiser could be particularly damaging to the machine,

Ah! ABS, that shouldn't be much of a problem then.

It's Polyolefin plastics like polyethylene and polypropylene that regular glues and sealants won't stick to https://www.jbc-tech.com/media/gd2llmgr/die-cut-solutions-to-bond-low-surface-energy-materials.pdf

Hello there. Does anybody found out a way to fix this ? Recently I used epoxy instead of the rubber seals, worked great at the begining but failed again. I saw that if you heat up the epoxy it turns from hard into almost liquid ! My next try wil be with poxipol. Does anybody know if there is a new model/reengineered of the auto dose sistem? Thank you.