A Which? investigation had found out which dishwasher brands are the most and least reliable, including how popular brands Beko, Bosch, Hotpoint, Miele, Neff and more rank.
85% of dishwashers from the best brand last well over eight years without a single problem. And the good news is that you don’t have to splash out too much to get a dishwasher that will last. On average, Which? members spent £420 on the most reliable brand, which beat more expensive rivals, some of these costing hundreds more.
But our research found it doesn’t pay to skimp when buying a dishwasher either. All the cheapest brands in our investigation got the worst reliability ratings.
See the top dishwasher brands
It’s worth spending a bit more on a dishwasher
We surveyed 3,211 dishwasher owners in September 2019 to find out which brands suffer from the fewest faults and last the longest.
Our survey discovered that dishwashers tend to be pretty reliable compared with washer-dryers or freestanding cookers, for example. But be careful which brand you choose; 31% of models from the least reliable brand develop a problem within the first eight years, more than twice as many as from the best brand.
Spending a bit more will get you the best. On average, dishwashers from the most reliable brands will set you back at least £400. But spending over the odds, and going for the most expensive (that cost £720 on average) won’t get you better reliability.
More-expensive dishwashers tend to do better in our testing, too. But there are exceptions to every rule, and we’ve found cheap £250 dishwashers that clean better than models costing more than £1,000.
Check out all our dishwasher reviews before buying
Buying from one of the most reliable brands could mean your dishwasher lasts up to 13 years.
However, buying from the worst could mean you’ve got to replace it in as little as six and a half years.
What are the most common dishwasher faults?
1. Loss of cleaning performance
If you don’t think your dishwasher is cleaning quite like it used to, you’re not alone. This accounts for 13% of all the dishwasher faults we recorded in our survey.
Topping up the salt could fix this, as it renews the water softener in the dishwasher, allowing detergent to work better.
If this doesn’t fix it, give it another go with a higher water-hardness setting. Instructions on how to increase this for your machine should be in the manual.
2. Dishwasher not draining
Regular dishwasher maintenance jobs, such as cleaning the filter, could help prevent this from happening.
Using a dishwasher cleaner on a hot empty wash will also help to clean out the pipes in your dishwasher.
If this still doesn’t work, check that the waste hose at the back of the dishwasher isn’t kinked or bent.
And if your dishwasher is connected to your sink waste, pour drain unblocker down the sink.
Check out our guide on how to fix a dishwasher that’s not draining for full step-by-step instructions.
3. Not drying properly
Rinse aid reduces the surface tension of water, meaning everything dries much more easily. Topping it up and increasing the rinse aid setting could improve how well your dishwasher dries.
- The rinse aid compartment is right next to the detergent dispenser on the inside of the dishwasher door.
- Increase the amount of rinse aid used by your dishwasher, too: simply twist the dial under the rinse aid lid to a higher setting.
If this doesn’t fix it, a broken heating element is probably the cause. You’ll need a professional repairer to fix this, and it might be cheaper to simply buy a whole new machine once you take into account call-out and labour costs.