[electrofix]

have emailed you a doc i got a while ago on virtual sensors

Dave

[electrofix]

disconnect heater and see if anything changes

check motor brushes ( if its got them)

if all above no check board for triac damage on interlock circuit

Dave

[electrofix]

that sounds like the reversing relays may have a problem on the board

Dave

[electrofix]

if you are saying the inner drum moves 2 or 3 mm inside the outer drum then thats too much

on spin you have a heavy load of washing trying to push the drum in all directions. if there is any play in the inner drum it will bang about inside the outer one

a small amount of play front to back is ok but up and down is a no no

Dave

[electrofix]

well looking on connect I think it may be their part no
[h=1]5055002519598[/h]
Dave

[electrofix]

well no fault codes listed on the tech site

hoover dont make these and never have made dishwashers

I would check pressure switch first

dave

[electrofix]

cracked spider leg leads to drum run out. when you spin by hand the drum is out of true. during spins with a load in the other spider arms flex and it starts hitting both the door rubber and possibly the outer tub. it can continue until the tub rubs through and it floods

Dave

[electrofix]

TailSpin wrote:I hadn’t, but just did. There is just one large piece of concrete on the top of the drum and it is firmly attached, so the noise is not being caused by a loose concrete. Was a good point though.

there is another big concrete weight at the front under the door rubber

Dave

[electrofix]

JCLAB wrote:… and here is the picture of the main pump inlet…. looks clean I think.

JonathanC

you need to look well down inside till you can see the impellor

the blockage will be in the impellor itself not the passage way to it

Dave

[electrofix]

have you checked the concrete weights have not come loose ?

Dave

[electrofix]

well my first thing on this type of fault is elements
we get all sorts of fault caused by elements with slight earth faults

try disconnecting the wires to the dryer element. make them safe and see if it makes a difference

you can try the same with the wash heater but it will only run rinse and drying progammes as it cant heat the water

you may get error codes if so we will have to rethink

Dave

[electrofix]

JCLAB wrote:Ah.. exccellent schematic thanks.

Were you suggesting I should be able to see into the main pump using mirror etc as you describe in your first message?

Thanks again,
Jonathan C

schematics can be seen here

https://www.siemens-home.bsh-group.com/uk/customer-service/spare-parts-search

just put Enr in

yes you can see with a small mirror, have done it lots of times

you can see whats inside the pump here

https://www.youtube.com/watch?app=desktop&v=3RF_KMxb2X4

as for the pump see pic below and the arrow pointing to the impellor input where it can block

if you can see a blockage but cant hook it out you may have to remove the motor. do not take the motor apart as some utube videos show

Dave

[electrofix]

thats the drain pump the wash pump is the other side of the sump

Dave

drain pump 455

wash pump 450

[electrofix]

first thing i would check is to see if the pump has swallowed something like plastic that may have been on plates

on this model with a bright torch and a small mirror you can see into the pump impellor from the sump

remove filter and dry out water. remove small plastic guard protecting the pump inlet. then use mirror and torch to see if you can see anything

have managed to hook things out with stiff wire to save removing motor

Dave

[electrofix]

but did you test it electrically to make sure the drier knows the door is closed ?

Dave

[Author]

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