Dishwasher not drying dishes: causes and safe checks
Quick answer
Wet dishes are often a loading or rinse-aid issue rather than a fault. Leave space between items, use rinse aid even with all-in-one tablets, and pick a more intensive drying programme if your model has one. Plastics stay wet because they don’t hold heat. If the water doesn’t heat at all, book an engineer.
Also covers: dishes wet after dishwasher · dishwasher not drying plastics.
Bosch notes that plastic items don’t dry well in any dishwasher because the material doesn’t retain heat.
Likely causes
- Items packed too closely together
- No rinse aid, or relying on rinse aid in tablets
- Plastic items
- Water not heating
What you can safely check yourself
- It still doesn’t heat after the checks. Heating faults need an engineer.
- The code or problem comes back after you’ve done the safe checks on this page.
- The next step would mean removing a cover or panel, or working on the pump, valves, heater, motor, door lock or wiring. That is a job for a qualified engineer.
Work through these in order. Stop as soon as one of the signs above applies.
Check the loading
- Make sure nothing stops the spray arms turning or blocks the detergent compartment lid.
- Leave space between items so water and heat reach every surface.
- Put heavily soiled pans in the lower basket, and cups and glasses in the upper basket.
- Scrape food off plates before loading.
Top up dishwasher salt and rinse aid
- If the salt indicator is on, fill the salt reservoir in the base of the tub with dishwasher salt and screw the cap back on firmly.
- Fill the rinse aid dispenser. Manufacturers recommend rinse aid even if your tablets contain it.
- Set the water hardness on the dishwasher to match your local water. Your manual explains how.
Don’t: Never use table salt, sea salt or cooking salt in the reservoir.
Showing an error code?
These codes are related to this problem. Codes differ by brand, so pick yours:
- E09Bosch The dishwasher’s heating element is defective.
- HCSamsung The dishwasher has stopped because the temperature inside is too high.
Related problems
- Dishwasher leaving glasses cloudyCloudy film on glasses is usually limescale from hard water, not an appliance fault.…
- Dishwasher not cleaning properlyWhen dishes come out dirty, check whether the tablet dissolved. If it didn’t, an item…
Brand guides: Bosch, Samsung. More dishwasher problems and codes, or use the fault finder.
Sources
- Bosch Home UK: Dishwasher not heating water or drying Manufacturer UK · checked 11 October 2026
- Bosch Home UK: Dishwasher not cleaning Manufacturer UK · checked 11 October 2026
- AEG UK: Dishwasher making noises – normal sounds and signs of a problem Manufacturer UK · checked 11 October 2026
- Bosch Home UK: What does dishwasher salt do? Manufacturer UK · checked 11 October 2026
- Bosch Home UK: Dishwasher leaves glasses cloudy Manufacturer UK · checked 11 October 2026
Last checked against these sources: .
We write every page in our own words from manufacturer guidance and check it against the sources above. If your manual says something different, follow your manual. How we check.