Right. My washing machine works hard, it's about a year old and I do 1-2 loads every day. I use proper washing machine cleaner every 2 months or so but it smells like something has died in it !! I have this week done a cleaning sachet thing, done an empty dettol washing and an empty 90' wash. It still stinks. Not sure what to do now !!
As well as cleaning the door seal, have you taken the powder dispenser out? The powder dispenser is a common source of odour because mould proliferates under and above the dispenser cavity, as well as on the dispenser itself. Especially likely if you use liquids/capsules and/or fabric conditioners.
Empty out the filter trap at the front bottom of the machine. It is often behind a little door. If you can pull your machine forward a couple of feet then tilt it back to lean against the wall or countertop and place a bucket under the trap it will save a lot of water on the floor. Also whilst the machine is out remove the waste pipe and give it a flush through incase anything is trapped in it.
This happened to me and it turned out the element for the washing machine had gone, so all my washes were cold. No wonder the 90 degree maintenance washes weren’t helping. There was no error code & dryer was still working. I finally figured it out by running a 90deg wash and stopping it to check every so often throughout the cycle.
True, the bacterial mould growth within your washing machine is the reason for the bad smell. If the maintenance 90deg wash doesn't help then there is something more. Here the other two reasons for the bad smell:
1. A clogged or blocked filter or filter housing - please check your filter and housing for blockages 2. Connection and drainage problems leading to a backflow of outlet water - this is the worst problem. Check that your washing machine is emptying into a ‘U Bend’ water trap and you may need a plumber.