I’ve spent eighteen years pulling machines out of kitchens across Bristol, and if there’s one thing that gets my goat, it’s seeing someone call a technician because their dishes are coming out cloudy. Most of the time, the machine isn’t “broken”—it’s just choked on its own filth. People spend a fortune on fancy, scented pods and high-tech detergents, thinking that’s the magic fix, when the real issue is that they’ve neglected the simple act of cleaning a dishwasher once a month. I’ve opened up more units than I can count, and more often than not, I’m not looking for a faulty circuit board; I’m looking for the layer of grey sludge that’s settled in the sump because someone thought a “self-cleaning” cycle was a substitute for actual maintenance.
I’m not here to sell you on some overpriced chemical gimmick or a complicated twelve-step ritual that takes all afternoon. I’m going to show you how to do this properly using nothing more than a bit of common sense and a few things you likely already have under your sink. My goal is to give you the straight-talking, no-nonsense method for keeping your machine running like the day it left the factory, ensuring you don’t end up throwing away a perfectly good appliance just because of a preventable clog.
Understanding Cleaning a Dishwasher Once a Month

Now, I’m not talking about a deep overhaul that takes all afternoon. When I say you need to be doing this monthly, I mean it’s about catching the small stuff before it turns into a service call. Most people only call me when their kitchen smells like a swamp or the plates come out looking cloudy. Usually, it’s because they’ve let grease and food scraps settle in the nooks and crannies. By making a habit of cleaning dishwasher filter units regularly, you’re stopping that sludge from recirculating every time you run a cycle.
It’s also about the bits you can’t see easily. Over time, you’ll get a layer of grit around the edges, so cleaning dishwasher door seals is vital to stop leaks and keep the machine airtight. If you ignore the buildup, you’re essentially inviting limescale to move in and make itself at home. A little bit of routine prevents that nasty white crust from clogging up your heating element. It’s simple physics, really: if you keep the path clear, the water does its job, and the machine stays out of the scrap heap.
Key Things to Know

First things first, you need to stop looking at your dishwasher as a “set and forget” box. Most people call me when their plates come out looking cloudy or, worse, smelling like a damp basement. Usually, it’s because they’ve ignored the basics. A massive part of this is cleaning dishwasher filter components; if that mesh is choked with old food scraps and grease, your machine is just recirculating filth instead of washing it. I’ve pulled out more filters than I can count, and half the time, they’re so clogged the pump is working twice as hard just to move a trickle of water.
You also can’t ignore the bits you can’t see easily. I always tell people to pay attention to cleaning dishwasher door seals, because that’s where the gunk settles and starts to rot. If you let mold take hold in those rubber folds, you’ll never truly remove dishwasher odors no matter how many expensive pods you throw in. It’s not about fancy gadgets; it’s about getting your hands a bit dirty once in a while to make sure the machine isn’t fighting itself.
Practical Tips and Steps

First things first, grab a torch and get down on your knees. Most people ignore the bottom of the tub, but that’s where the real trouble starts. You need to start by cleaning the dishwasher filter; it’s usually just a plastic cylinder that twists out, and it’s likely choked with bits of old food or even a stray toothpick. If you leave that gunk there, you aren’t just getting dirty dishes, you’re inviting smells. Once that’s clear, take a damp cloth and get into the crevices of the rubber gasket. Cleaning dishwasher door seals is a job most folks skip, but if you don’t wipe away the slime building up in those folds, your machine won’t ever truly be clean.
Next, let’s talk about the spray arms. I’ve seen plenty of machines “fail” just because a tiny seed got stuck in one of those little holes. Take them out and poke through the nozzles with a toothpick to ensure they aren’t blocked. If you want to really freshen things up without spending a fortune, a simple vinegar and baking soda dishwasher clean does wonders. Put a bowl of white vinegar on the top rack and run a hot cycle, then follow up with a sprinkle of soda. It clears out the grit and keeps things moving smoothly.
Common Mistakes to Avoid
The biggest mistake I see is people thinking a bit of detergent and a hot cycle is enough. It isn’t. Most folks ignore the little bits of grit and food that settle in the corners, and that’s usually when things start to go wrong. If you aren’t cleaning dishwasher filter components regularly, you’re basically just recirculating yesterday’s dinner scraps back onto your clean plates. It’s a waste of time and electricity.
I’ve also seen plenty of people go overboard with harsh, scented chemicals that promise the world but actually end up coating your internal components in a nasty film. If you want to remove dishwasher odors properly, stick to the basics. A bit of a vinegar and baking soda dishwasher clean does more for the machine than those expensive, over-marketed pods ever will.
Lastly, don’t forget the bits you can’t see easily. People often neglect cleaning dishwasher door seals, leaving mold to grow in the folds where the rubber meets the frame. If you let that gunk build up, you’ll be calling a technician for a leak much sooner than you’d like.
Final Thoughts
Look, I’ve spent nearly two decades pulling out machines that people thought were dead, only to find they were just choked with old food and grit. It’s rarely a motor failure that sends a machine to the scrap heap; it’s usually just neglect. If you take ten minutes once a month to focus on cleaning dishwasher filter components and checking your seals, you’re going to save yourself a lot of grief—and a lot of money.
Don’t let it get to the point where you’re desperately trying to remove dishwasher odors with a mountain of scented pods. That’s just masking the problem. A simple, honest scrub of the rubber bits and a quick check of the spray arms is all it takes. It isn’t glamorous, and it certainly isn’t high-tech, but it works. My advice? Stop treating your appliances like they’re indestructible. They aren’t. Treat them with a bit of respect, do the little jobs before they become big ones, and they’ll actually last long enough to become part of the furniture.
Five bits of advice from someone who’s seen too many clogged pumps
- Don’t just look at the filter; pull it out and scrub it. I can’t tell you how many times I’ve been called out to a “broken” machine only to find a bit of broken glass or a stray toothpick wedged in the mesh.
- Check your spray arms for those tiny little holes. If they’re blocked with lime or bits of old food, your machine isn’t actually cleaning anything—it’s just swirling dirty water around. A quick poke with a toothpick usually does the trick.
- Run a hot cycle with a proper cleaner or a bit of white vinegar. It’s not just about the smell; you need to melt away that greasy film that builds up on the heating element and the internal walls.
- Wipe down the door seals. People always forget the bottom edge of the rubber gasket where the gunk likes to hide. If that seal gets nasty, it won’t sit right, and you’ll start seeing leaks.
- Stop overdoing the detergent. I see it all the time—too many suds can actually mess with the sensors and leave a residue that makes the whole machine feel sticky and inefficient.
The Bottom Line
Most “broken” dishwashers are just clogged ones; a monthly scrub of the filter and spray arms prevents the nasty smells and drainage issues that lead to expensive repair calls.
Stop treating your machine like a magic box—if you don’t clear out the food debris and grease yourself, it’ll eventually choke on it.
A little bit of preventative cleaning saves you a fortune in spare parts and keeps your dishes from coming out looking like they’ve been washed in a puddle.
Don't Wait for the Warning Light
At the end of the day, keeping your dishwasher running isn’t about following some fancy manual; it’s about the basics. If you can remember to clear out that filter, give the spray arms a quick check for blockages, and run a hot cycle with a bit of vinegar or cleaner once a month, you’ve already done more than most. I can’t tell you how many times I’ve been called out to a job, only to find a machine that was perfectly fine, just choking on its own grime. Avoiding those heavy buildup issues and nasty smells is really just a matter of consistent, simple maintenance rather than waiting for a total breakdown.
I’ve spent eighteen years pulling parts out of machines that were destined for the scrap heap, and I hate seeing them go. Most of the time, it’s a shame because the machine itself is sturdy; it just needed a bit of love and a clean filter to keep going. Don’t let a little bit of grease or a stray bit of food turn a perfectly good appliance into a pile of junk. Treat your machine with a bit of respect, stay on top of those monthly cleans, and I promise you’ll get years more life out of it. It’s better for your pocket, and it’s much better for the planet.
Frequently Asked Questions
If I've been using a dishwasher cleaner tablet every week, do I still need to do this manual monthly scrub?
Look, those weekly tablets are fine for cutting through grease, but they aren’t magic. I’ve pulled out plenty of machines that look clean on the surface but have a thick layer of gunk trapped in the filter or stuck under the spray arms. A tablet won’t scrub out a physical blockage or a bit of trapped debris. Stick to the monthly manual scrub; it’s the only way to be sure.
Is it actually worth taking the spray arms apart to clean them, or is that just overkill?
Look, I’ve spent eighteen years pulling machines apart, and I’ll tell you straight: it’s not overkill, it’s common sense. You can scrub the door all you like, but if those tiny little holes in the spray arms are choked with lime or a stray bit of grit, your dishes aren’t getting clean. Pop them off, run them under the tap, and poke any blockages out with a toothpick. It takes five minutes and saves a service call.
How do I know if my machine actually needs a deep clean, or if something is genuinely broken inside?
It’s usually the small stuff. If your dishes are coming out cloudy or smelling a bit funky, that’s just a buildup of grease and grit—a deep clean will fix that. But if you hear a grinding noise, see water pooling at the bottom, or if the machine won’t even start a cycle, you’re looking at a mechanical failure. A dirty filter won’t cause a loud screeching sound; that’s a pump or a motor crying for help.








