How to repair a dishwasher that won't drain - Which? advice

0:00 Intro
0:15 Clean the filters
0:42 Check the waste hose
1:05 Check the sink waste
1:16 Consider getting a professional

If your dishwasher won't drain, follow our quick guide to see if you can fix the problem without calling in a professional.

1. Blocked filters are a common cause of dishwashers not draining, but they're easy to check and fix. You'll find the filters in the bottom of the dishwasher; they come in three parts and are very easy to pull or twist out. Remove, clean and replace the filters.

If you use your dishwasher regularly, it’s a good idea to clean the filters every week or so. You can do this by running them under the tap.

2. If cleaning the filters doesn’t fix the problem, check that the waste hose at the back of the dishwasher isn’t squashed or kinked – if it is, this could stop the waste water from draining away.

If you have a freestanding machine, you and one other person will be able to pull it away from the wall. You can then check that there's enough room for the hose to drain properly. If you have an integrated model this will be trickier, and would be worth calling in a professional for.

3. If your dishwasher waste is attached to your sink waste, then it’s worth checking that, too to see if it’s blocked.

If after all of this, you can’t fix the problem yourself try Which? Trusted Traders to find a local trader who has been assessed and checked by Which? Experts - trustedtraders.which.co.uk/

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