Dishwasher advice
Not draining, dishes still dirty, stopping mid-cycle? Our engineers know domestic dishwashers inside out - freestanding and integrated across every major brand. Common parts are carried on the van, so many repairs are finished at the first visit.
Explore our dishwasher repair service
Dishwasher faults we fix most often
From our own repair records: how many dishwasher jobs we attended for each fault, and what customers typically paid in total, including parts and VAT. Each one shows what our engineers found and fixed.
- Dishwasher not draining656 jobs, customers typically paid £104 to £175
- Dishwasher beeping or flashing lights645 jobs, customers typically paid £104 to £206
- Dishwasher leaking255 jobs, customers typically paid £143 to £204
- Dishwasher not starting244 jobs, customers typically paid £104 to £187
- Dishwasher not heating200 jobs, customers typically paid £203 to £302
- Dishwasher water supply warning showing198 jobs, customers typically paid £108 to £244
- Dishwasher no power198 jobs, customers typically paid £104 to £194
- Dishwasher not filling172 jobs, customers typically paid £104 to £195
- Dishwasher stopping mid cycle169 jobs, customers typically paid £104 to £192
- Dishwasher door not closing159 jobs, customers typically paid £104 to £186
- Dishwasher not cleaning properly158 jobs, customers typically paid £104 to £234
- Dishwasher tripping the electrics123 jobs, customers typically paid £114 to £260
- Dishwasher pump running constantly109 jobs, customers typically paid £108 to £170
- Dishwasher controls not working97 jobs, customers typically paid £108 to £243
- Dishwasher noisy91 jobs, customers typically paid £104 to £225
- Dishwasher door dropping86 jobs, customers typically paid £157 to £219
- Dishwasher water in base78 jobs, customers typically paid £150 to £271
Dishwasher error codes
What each code means, checked by NAC's engineers, and what our engineers find and fix when it shows. Not listed? Try the error code and fault finder.
AEG
Bosch
Grundig
Lamona
Miele
Neff
Siemens
Dishwasher fault guides
Dishwasher lights flashing? What the machine is trying to tell you
Flashing lights are how most dishwashers report a fault. Here's what the common patterns mean and what to check before you call an engineer.
Read guide
Dishwasher not heating? Why the water's cold and dishes stay wet
If a dishwasher isn't heating, dishes come out cool, greasy or soaking. Here's what does the heating on a modern machine and what usually fails.
Read guide
Dishwasher not filling with water? What's stopping it
A dishwasher that runs but stays dry, or stops early with the dishes bone dry, has a fault getting water in. Here's what to check and what it means.
Read guide
How to clean a dishwasher properly (so it cleans your dishes)
A dishwasher that leaves dishes gritty or smells usually just needs a proper clean. Here's how to do the filter, spray arms and seals, and keep it that way.
Read guide
Dishwasher not draining? Why there's water in the bottom and how to fix it
Standing water in the bottom of the dishwasher? Here's what to check yourself, and what it means when it isn't a blockage.
Read guideSolving Common Dishwasher Drying Problems at Home
Wet dishes at the end of a cycle? Learn why your dishwasher isn't drying and the simple fixes that often resolve it.
Read guideCloudy Glasses & White Marks From Your Dishwasher: Fixes
White film, spots or drop marks on glassware? Here's what causes it and how to get spotless results again.
Read guide
Dishwasher Rinse Aid: What It Does & When to Top It Up
Rinse aid does more than you think, here's how it improves drying and shine, and how to refill and adjust it.
Read guide
3-in-1 Dishwasher Tablets vs Separate Salt & Rinse Aid
Are all-in-one tablets enough, or do you still need salt and rinse aid? The answer depends on your water hardness.
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How to Clean Dishwasher Spray Arms for Better Results
Blocked spray arm jets stop water reaching your dishes. Here's how to unclog and clean them properly.
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Dishwasher Problems: When to DIY and When to Call an Engineer
Some dishwasher faults you can fix yourself; others need a professional. Learn how to tell the difference.
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Dishwasher Salt Explained: Why It Matters & How to Refill
What dishwasher salt actually does, why ordinary salt won't work, and a step-by-step guide to refilling the salt chamber safely.
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Dishwasher Maintenance Checklist to Extend Its Lifespan
Simple monthly maintenance tasks that keep your dishwasher running efficiently and help avoid costly repairs.
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Is Your Dishwasher Using Too Much Water and Energy?
Rising bills? A struggling dishwasher can waste water and electricity. Learn the causes and how to fix them.
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How to Get Rid of Bad Smells in Your Dishwasher
Banish foul dishwasher odours for good with these cleaning tips that tackle trapped food and bacteria at the source.
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Why Your Dishwasher Isn't Cleaning Dishes Properly
Dishes coming out dirty or streaky? Discover the common causes and quick fixes before booking a repair.
Read guideHow to Clean a Dishwasher Filter: Step-by-Step Guide
A simple, safe step-by-step guide to removing, cleaning and refitting your dishwasher filter to keep dishes spotless.
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Dishwasher Water Hardness Setting: How to Get It Right
Set your dishwasher's water hardness correctly to balance rinse aid use, avoid foam and stop drying problems.
Read guideWhy Plastic Stays Wet in the Dishwasher (And Is It a Fault?)
Tupperware and plastic tubs still dripping while everything else is dry? Here's why it happens and whether you need a repair.
Read guideDishwasher Door Won't Close or Latch: Fixes
A door that won't shut means no wash cycle. Learn the common reasons and how to get your dishwasher latching again.
Read guideWhy Is My Dishwasher Leaking From the Door?
Water pooling on your kitchen floor? Discover the common reasons a dishwasher leaks from the door and what to check first.
Read guideWhat Causes a Dishwasher Seal to Perish or Come Loose?
Wear, heat and harsh detergents all damage dishwasher seals. Learn why they fail and how to make them last longer.
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How to Replace a Dishwasher Door Seal: Step-by-Step
A clear, safe DIY guide to removing a perished dishwasher door seal and fitting a new one to stop leaks for good.
Read guide
Some dishwasher faults you can sort yourself. Plenty need an engineer.
These guides will help you understand what has gone wrong and safely sort the simple stuff. But a lot of dishwasher faults involve mains electricity, sealed parts or specialist diagnostics, where guesswork gets expensive fast. If in any doubt, book a NAC engineer to diagnose and fix it properly - fixed price agreed up front.
- Fixed-price quote before any work starts
- Same or next-day visits where available
- UK-wide engineer coverage