Catching a dishwasher problem early almost always means a simpler, faster fix. Here's what to watch for.
By We Fix It Appliances | July 2026 | Dishwasher Repair
Most dishwasher problems don't happen all at once. There are almost always warning signs that show up days or weeks before a full breakdown. The trouble is, most people ignore them — and a small issue that could have been a quick fix turns into a much bigger one.
Here are the five signs we see most often that mean your dishwasher needs a professional look.
If you open the dishwasher and find standing water at the bottom, that's not normal — and it's not something to run another cycle and hope goes away. A drainage failure means something inside the machine has failed or is blocked, and running it repeatedly can strain the motor and cause additional damage.
This is one of the most common calls we get across the GTA, and it's almost always repairable same day.
A dishwasher that goes through a full cycle but leaves food residue, grease, or film on dishes isn't cleaning properly. This often gets worse gradually — people assume it's the detergent or the water, try different products, and weeks go by before they realize the machine itself is the problem.
If your dishes aren't coming out clean, the machine needs to be assessed. Don't keep running it and assuming it'll sort itself out.
Any water outside the dishwasher — even a small puddle or damp patch — needs to be taken seriously. A leak left unaddressed can damage your flooring, cabinetry, and subfloor. What starts as a minor seal issue can become a water damage claim.
If you see moisture around the base of the machine or under adjacent cabinets, stop running it and call a tech. This is not a wait-and-see situation.
Dishwashers are designed to run quietly. A grinding, banging, rattling, or high-pitched whining sound during a cycle means something mechanical is wrong — and mechanical problems that make noise tend to get worse with each cycle, not better.
If your dishwasher has developed a new sound, get it looked at before the component fails completely.
Modern dishwashers (most models 2012 and newer) display error codes when they detect a fault. These codes exist for a reason — the machine is telling you something is wrong. Dismissing the code, resetting the machine, and running it again is a short-term workaround, not a fix.
If your dishwasher is showing an error code that keeps coming back, a technician can read the code, identify the root cause, and fix it properly — not just clear it.
The pattern we see constantly: a customer notices something off, figures it's minor, waits a few weeks, and by the time they call us the problem has compounded. A pump that needed a simple repair now needs a full replacement. A small seal leak has caused cabinet damage.
Appliance problems almost never fix themselves. If your dishwasher is showing any of the signs above, the smartest move is to get a professional diagnosis now — before the repair becomes larger than it needs to be.
We fix dishwashers from all major brands including Samsung, LG, Bosch, Miele, Whirlpool, Maytag, GE, Frigidaire, KitchenAid, and more. Our technicians arrive with fully stocked vans and complete most repairs same day.
We serve all of Toronto, North York, Etobicoke, Scarborough, Mississauga, Markham, Vaughan, and Richmond Hill. Call or text us and we'll get a tech out the same day.
Seeing any of these signs? Don't wait — call us and we'll get there same day.