Lots of bubbles during empty washing cycle

[Ladysamantha]

Hi, I have a new washing machine, around a month old and it's a Samsung. It has a feature which prompts you to run a drum clean cycle. I've just started one (I've not added any detergent as recommended) and they're seems to be a lot of bubbles! Is this normal? I can't imagine there is that much product build up after a few weeks.
The machine doesn't smell, the rubber seal still looks clean and I only ever use one liquid capsule with every wash so no chance I'm adding too much detergent.
Has anyone ever noticed if their machine does this?
I never did this with my old machine so I can't compare them.

Is it an eco bubble machine? It makes bubbles too even without detergent

Yes, empty loads do bubble. The whole system is drenched in soap.

An engineer told us to use half the recommended dose of powder.
Try an occasional load without soap. That will help clean the machine, too.

Yes it is an ecobubble. The bubbles look like soapy bubbles and are still there even when the drum isn't spinning and the water is still

I'll run the empty cycle more often and see what happens. Thanks for your replies

@Ladysamantha I only ever use one liquid capsule with every wash so no chance I'm adding too much detergent

I can promise you there is. The capsules can be far too much in some cases. I've had wash loads where is taken five or six (yes really) wash loads to get the soap out from one capsule.

I've got a samsung and it's the same. Just assumed it was residue and eco bubble combo. Might look at reducing liquid dosage though cos I do know I use too much (just pour in instead of measure).

I have a "smart" Siemens machine which warns me when I've used too much powder.

It shocked me how very little you actually need! I use Ariel powder and for a 10kg load it only requires a very small scoop, as opposed to the three large ones recommended on the box.

I've been doing some googling and you guys are right. I'll switch to a powder/ liquid so I can control the dose. I think it must be leaving a residue on my clothes because when they are dry and I shake an item of clothing, I see dust/ particles in the air.
They could probably have done with another rinse or two.

I don’t buy the capsules because I agree they have too much product for an average wash. I like washing liquids and use a lot less than the bottle recommends and my washing is always clean and fresh.

We have a holiday home which is often borrowed by friends and family. Some of them are very heavy handed with detergent and it can take a couple of wash loads without adding anything to rinse out the machine.

I like powder. Keeps the drum cleaner too

Cool washes don't dissolve the soap well so leave more residue. If you put towels in for a hot hot hot cotton wash with no soap, no fabsoft and a scoop of Washing Soda Crystals, you will find the water foams up and goes grey as it washes out the residue.

The towels will come out clean and soft.

We have an Eco Bubble and were using Persil liquid capsules, and kept finding the machine would stop draining because the outlet hose would periodically gunk up and need flushing.

We switched to Persil powder and have had no problems since. We use one scoop and throw in a Calgon tablet every few washes.