Bosch Maxx 900 front loader won't drain water. Cannot remove filter lid by turning anticlockwise at left front bas of machine. It turns only a fraction but will not undo.

Filter is located bottom left of machine it has a small black hose tucked inside ,you would remove the Plug on the end of the hose and drain any excess water into a container then unscrew the filter anticlockwise to remove the filter any object within will now bw apparent... Good luck.

You don't. Washing machines don't have a handy accessible filter...

Check the owner's manual that came with the machine.

Has somthing inside the filter thats preventing it turning
remove assembly and service

Unscrew it anticlockwise

Something must be jamming the filter. You will need to just keep working it. If you cannot get it to open, you will need to replace the whole assembly.

Hi from retired Englishman in SW France,

I suspect that there is water still left inside as the drain pump has been unable to complete its task so they are being spun in water!
I would gently suggest as a first step that you clean the drain motor/pump lint tray/filter. So many 'faults' are caused by blocked filters and many machines will not even go to rinse or spin or release the door lock if there is any water still left inside.
Following are my complete and hopefully 'coverall' pre-typed guidance notes for checking both the drain motor filter and the drain motor ;-0)
REMOVE POWER AND ENSURE YOU HAVE A WATER RECEPTACLE/RAGS TO SOAK UP THE WATER WHICH IS BOUND TO POUR OUT (alternatively use a wet vac as sensibly suggested by VinnyB1234!)
If you are unsure where the filter is, it is often behind the front lower (kick) panel (or in some machines at the rear in an awkward position!). These panels are either held on by (plasic) screws or will just pull off. Most filters are held in by a round cover/knob. Sometimes the filter will not come out with the cover and you will have to persuade it to come out to play.
It's surprising what people have found in theirs! It is always worthwhile checking it on a regular basis.
Now- whilst the filter is removed it is normally possible to see the drain motor and ensure it is not jammed by a foreign object such as a needle or a toothpick. It should be able to be turned by hand/finger- the power IS OFF!
At this point it is also possible to test if the motor works. No clothes or water in the machine, select a spin cycle and put the power back on. You should be able to see the motor turning at some point, possibly straight away. Using something suitable like a glove see if it is easy to briefly slow the motor down. If it is easy then the motor is malfunctioning.

If this has assisted you please consider a 4 thumbs up for the rating.
Thanks and good luck!
John C

Hi from retired Englishman in SW France,
I would gently suggest as a first step that you clean the drain motor/pump lint tray/filter. So many 'faults' are caused by blocked filters and many machines will not even go to rinse or spin or release the door lock if there is any water still left inside.
Here are my complete and generic guidance notes for checking both the drain motor filter and the drain motor ;-0)
If you are unsure where the filter is, it is often behind the front lower (kick) panel (or in some machines at the rear in an awkward position!). These panels are either held on by (plasic) screws or will just pull off. Most filters are held in by a round cover/knob. Sometimes the filter will not come out with the cover and you will have to persuade it to come out to play.

REMOVE POWER AND ENSURE YOU HAVE A WATER RECEPTACLE/RAGS TO SOAK UP THE WATER WHICH IS BOUND TO POUR OUT (alternatively use a wet vac as sensibly suggested by VinnyB1234!)
It's surprising what people have found in theirs! It is always worthwhile checking it on a regular basis.
Now- whilst the filter is removed it is normally possible to see the drain motor and ensure it is not jammed by a foreign object such as a needle or a toothpick. It should be able to be turned by hand/finger- the power IS OFF!
At this point it is also possible to test if the motor works. No clothes or water in the machine, select a spin cycle and put the power back on. You should be able to see the motor turning at some point, possibly straight away. Using something suitable like a glove see if it is easy to briefly slow the motor down. If it is easy then the motor is malfunctioning.

If this has assisted you please consider a 4 thumbs up for the rating.
Thanks and good luck!
John C

Sorry. It seems that I have fixed it by using your solutions!
I drained it and cleaned the filter thing down in the bottom right hand corner, put it back to gather and then it turned on again!
Interestingly I found a bobby pin down there!

Thanks for your assistance John_Cross!!

Hi from retired Englishman in SW France @13:45 Tue afternoon,

Although I do not know your specific model (I am assuming front loader) this DOES sound as if there is a problem draining the water? I put a question mark in case you know that it is draining OK!
If not it is probably the drain motor lint tray/filter which requires cleaning/emptying- again I am assuming that this is the cause of the problem.

If you do not know where it is and it is a front loader this is what to do:-

REMOVE POWER FROM THE MACHINE AND HAVE A WATER RECEPTACLE AND/OR RAGS TO SOAK UP THE WATER!

Take off the lower front panel which is either kept in place by some plastic screws, which are removed by turning 90 degrees anticlockwise, or is just clipped on and off. Behind should be found a circular smaller panel which it should be possible to remove by again turning anticlockwise.
NOW COMES THE WATER IF IT IS THERE!
Sometimes the filter comes out with the panel, sometimes it is necessary to remove it separately for cleaning.
At the same time it is worth checking the pump impeller blades to ensure they(and the motor) turn freely by use of your hand/finger- the power is off of course.
Hopefully this could well cure your problem. It is also worthwhile regularly checking the filter- I do every 3 months or so- if I remember -or 'Management' reminds me!

Good luck,

John C

Turn off the water supply to the washer, and disconnect the inlet hoses, remove the drain outlet hose and lay it down to drain any water in the hose.
Remove filter, and drain water off inside.
That should do it.
Hope this helps.