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How to Diagnose Washing Machine Drain and Pump Problems

If your washing machine drain or pump are experiencing problems, it'll hinder the performance of the appliance. Find out how to diagnose and repair such faults by watching this eSpares video.

Hopefully by watching this video you will be able to identify the issue that you might be experiencing with your washing machine.

What You Will Need:

Switch Off Your Appliance

Safety First! Please make sure that you have switched your appliance off at the mains before starting your repair.

What’s Wrong? - Washing Machine Will Not Drain

The most common drain problem that washing machines develop is that they simply won’t drain at all. We’ll now go through the main causes on why the machine may not be draining, and also why it might be draining but is draining slowly.

Cause 1: Foreign Object From The Wash Load

This is usually due to a foreign object in the wash load that has found its way through the machine - and has then got stuck in the sump hose and blocked the water to the pump.

To give you a better idea of what’s going on, we’ll put the machine down onto its side so we can have a look inside. You can now see the pump assembly and this the sump hose.

Step 1 - Check The Filter

Most machines are made with a filter or a trap - which you can usually get to by undoing the cover on the front of the machine, and unscrewing the filter.

This filter is designed to catch objects that have made their way through the wash load before it gets to the pump.

It may be the case on your machine that the filter is similar to this one, where the front of it is attached to the body and that means sometimes if you do get an object caught in there you can’t actually unscrew the filter because it catches on the sides.

If that’s the case you’ll need to get access to the pump assembly or the sump hose, and remove either one of them in order to remove that object from the filter.

If the machine is draining slowly it could be due to a partial blockage and that could be from debris or a small item of clothing. You need to check that the filter is clear from such items.

Step 2 - Check The Sump Hose

Once you’ve checked that the filter is clear, the next stage is to check the sump hose - so proceed to feel along the sump hose for anything that might be blocking it, and obviously if you do find something you’ll need to disconnect the sump hose and remove the blockage.

Step 3 - Check The Pump

Another reason as to why your machine may not be draining is that the pump can be burnt out, or sometimes something can get wrapped around the pump impeller (such as a piece of plastic or an elastic band).

If you find that something has got wrapped around it you will need to remove it, before putting the pump back in.

This machine is equipped with two pumps, a recirculation pump and a drainage pump.

If you’re getting strange noises during the wash cycle that’s more likely to be a problem with the recirculation pump, if the noises are happening during the draining then that could be an issue with the drain pump.

Step 4 - Check The Sink

Well by doing the steps above you have done the checks on the most common reasons as to why your washing machine is not draining correctly.

If you still can’t find anything that explains the problem, and if your machine is connected to a spigot underneath the kitchen sink, then it could be that connection itself is blocked (possibly with fat deposits etc).

To check the connection is blocked, you just need to disconnect the drain hose from the spigot and try emptying the machine into a bucket.

If the water does come out the hose correctly, then obviously you’ll need to clear the connector before refitting the drain hose.

What’s Wrong? - How To Drain A Machine If It’s Stopped While It’s Full Of Water

This is a question that we often get asked - and there are a few things you can try. If you go to the cover in front of the filter and pop that open, many machines contain a small drainage hose which can then be used to empty the water into a shallow bowl or bucket.

Another thing you can try is to lean the machine backwards so that the water level inside is lower than the door and then just open the door and ladle the water out.

Something else to try is to take the drain hose and lower it to the floor so it’s lower than the water level in the drum, and that should enable the water to just run out.

Need To Locate The Spares For Your Washing Machine?

We do hope you have found this video useful in helping to identify exactly what is causing your machine not to be draining correctly.

You can also see our full range of Washing Machine spare parts on our website.


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