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Washer does not fill, water supply error

Hi,

My grandpa has a Miele w5801 washer, it recently stopped filling water.

It returns a water supply error.

I cleaned the filter at the inlet with little result. I can hear the relays click that are supposed to open the supply solenoid, but no water actually comes in.

Could this be a solenoid issue? If yes, what part number should I look for? Or is there another place I should check first?

Thank you in advance!

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Hi @maximc

I can't find a service manual or a parts list so I'm not sure but there may be a flowmeter¹ used in the machine.

Miele uses them in other washer models as well as dishwashers to measure the amount of water entering into the machine.

If it is faulty then the control doesn't know how much water is entering so it shuts off the solenoid.

¹ The link is an example to show what it might look like - as I said I couldn't find a parts list for your model. Knowing the model's EAN number may help to find parts for your machine as well.

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3 Comments:

Thank you very much! Trough elimination I found out it's the 'AquaStop' that has failed. In my online research I always found that the water inlet valves/solenoids were in the machine itself, however in this case it's right at the faucet itself and from what I understand combines the inlet solenoid with flow metering so if the flow exceeds a limit it will shut off. Luckily it has a part number and can be easily replaced by unscrewing a single screw and disconnecting a wire. (Miele part number 05922062)

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@maximc

Thanks for the feedback.

A flowmeter is used a lot in certain makes e.g. Bosch, Siemens and Miele but where it is located can vary it seems.

In Bosch/Siemens dishwashers for example which also have the solenoid at the faucet, the flowmeter is mounted on the left side of the machine (when viewed from the front).

It is a simple reed switch (example) activated by an impeller which has a magnet attached at one point so that when the water flows it turns the impeller and this causes the reed switch to send pulses to the control board which counts them and therefore knows how much water is entering.

Usually you can get away with just unsoldering the reed switch and replacing it, rather than replacing the whole part ;-)

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Thanks for the explanation! I'm fairly confident this case is not a bad flow meter since the actual "assembly" got quite hot. Unfortunately it's all potted in epoxy. I'll definitely try dissecting the broken one when the replacement arrives, just out of curiosity. I even have a bunch of spare reed switches laying around :)

Have a good day!

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