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Ask Techdesk Your Own Question
Techdesk
Techdesk, Field Service Engineer
Category: UK Appliance
Satisfied Customers: 16407
Experience:  Whitegoods engineer working for a multibranded national company in the UK.
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dishwasher not finishing cycle, motor running but no water

Customer Question

dishwasher not finishing cycle, motor running but no water , tablet is left in the base of washer, washer then shuts down into a protective mode, clock sets to 9 mins.
Submitted: 7 years ago.
Category: UK Appliance
Expert:  fishfan2 replied 7 years ago.
Does it fill up at the start of the cycle?
Customer: replied 7 years ago.

if left for few days it may start but then get stuck.

if i turn it on when playing up it just hums and no water.

make of dishwasher is siemens hydrosensor , se25a090gb

 

Expert:  fishfan2 replied 7 years ago.
I am not familiar with this make, but it sounds like your fill valve is bad, I will opt-out so another tech may help you.
Customer: replied 7 years ago.
cheers
Expert:  Techdesk replied 7 years ago.

Hiya,

Your machine is suffering from restrictions in the internal pipework and possibly the pressure chamber.

 

Unplug the appliance, drag it out and take the side panels off.

You'll see the larger metering tank and near it the pressure chamber.

Check these for blockages and clean out the pipe going from the pressure chamber to the wash motor.

 

Let me know what you find.

 

 

Hope this helps

Thanks

Customer: replied 7 years ago.

i will try tomorrow and let you know, what does the pressure chamber look like?

 

Expert:  Techdesk replied 7 years ago.

Hiya,

Pressure chamber is a small unit near the bottom front of the appliance. There will be a red lever in the vicinity too.

 

Hope this helps

Thanks

Customer: replied 7 years ago.

morning.

i had the side panels off , the main tank (large flat one ) is a bit grubby but fine , took this off them cleaned the ports in what it plugs into . cleaned the thing what sits next to the pressure chamber, looks like a overflow from the main tank?

still no good!

with side panels off i set machine to run,

water goes in main feed up and round tank but seems to get stuck , it trys this for about 3 ,4 goes then two cliks from a motor? then pressure chamber starts to make noise , water then biuld up in mian tank before being released into the overlow pot .

when the water trys to get through there is a small amount making it into machine.

hope you can get your head round all that!!!

i await your reply

thanks

Chris.

Expert:  Techdesk replied 7 years ago.

Hiya,

 

Here is the exploded view of your appliance.

 

Click here for exploded view

 

Item 480748 is the pressure chamber. This has to be clean and clear.

Item 298556 is the transfer hose. This has to be clean and clear.

 

The 3 ports that the main tank plugs into, the hoses attached to this also have to be clean and clear of any debris.

 

Clean these items thoroughly then try again.

 

 

Hope this helps

Thanks

Customer: replied 7 years ago.

hi , have nearly sorted it i hope!!!

have found that the hose which is the main feed has a aqua valve on the end , this is not working when attached to the machine, i have removed it and tested it and it works when i wired it up on its own , what do i do now?

is it an electrical fault,machine not telling the valve to let water in?

Expert:  Techdesk replied 7 years ago.

Hiya,

If the aquastop that's not being powered then the appliance is stuck in the "full" position.

From what you've described it would appear the the pressure switch part of the pressure chamber is stuck.

(This has a plastic bar running across it).

Press the pressure switch in and try the appliance.

It still all points to internal blockages but could be a faulty pressure chamber.

 

Hope this helps

Thanks