Dishwasher Leaving Dishes Dirty
If your dishwasher isn't getting dishes clean, the cause is almost always water temperature, spray pressure, or detergent, and we work through those in that order. Grit in the bottoms of cups, cloudy glasses, food dried onto the tines, sometimes a white film on everything. You run it again and get the same load back. A dishwasher that quits cleaning is usually pointing at something specific. Here's how we sort it out, cheapest causes first.
- Safe checks only
- All major brands
- Written quotes
- A real person answers
- Open 7 days
- Written quote before work starts
Taking calls until 5:00 PM MST
By the Surprise Appliance Repair service team · reviewed by our working technicians
What "not cleaning" actually points to
A dishwasher needs hot water, spray pressure, and detergent that still has strength in it. Lose one and the dishes come out dirty. The good news is the symptom narrows things down fast. Food chunks left behind usually mean water isn't hitting the dishes with any force. White chalky film usually means hard water and no rinse aid, not a broken machine. Greasy residue often means the water never got hot enough. Hard water is common around here, and mineral scale builds up inside spray arms and heating elements quietly, over years. Figure out which of those patterns you have before you touch anything. Saves a lot of guessing.
Start with the cheap stuff: loading, detergent, and water temperature
Overloading is the most common thing we find. A big platter laid flat blocks spray from ever reaching the upper rack, and bowls nested together shield each other. Give every item a clear path to the center. Then look at your detergent. Old detergent caked in the box loses strength, and pods stored out in a hot garage break down. If you have hard water, use rinse aid; that's the fix for cloudy glass most of the time. Last, run the kitchen faucet hot before you start a cycle so the machine fills with hot water instead of cold. Those few changes solve a surprising share of the calls we get.
Clogged filter, clogged spray arms
Most modern dishwashers have a removable filter down in the floor of the tub. Twist it out. You may find a gray paste of grease and food sitting in it. Rinse it under hot water with a soft brush, and do that monthly. Next, spin each spray arm by hand. It should turn freely. Look at the small holes along the top, and if any are plugged with seeds, labels, or mineral crust, poke them clear with a toothpick. Plenty of spray arms unclip by hand, no tools needed. While you're down there, check the tub floor near the sump opening for a stray olive pit or a bread tag. Small blockages cost a lot of performance.
When it's mechanical: pump, heater, or inlet valve
Filter clean, arms spinning, dishes still dirty? Then the machine probably isn't making pressure or heat. A worn wash pump impeller still spins but moves very little water. A dead heating element leaves the water lukewarm, so grease never lifts. A restricted water inlet valve underfills the tub, and there isn't enough water in there to throw around. Sometimes you can hear it: a weak, airy sound instead of a steady pulsing spray. Open the door mid-cycle and the dishes may be barely damp. These parts sit behind panels, with water and electrical connections involved. That's where a homeowner check should stop and a service call starts.
What we do that you can't from the kitchen
We measure the fill volume and time it, so we know whether the tub is actually getting enough water. We check incoming water temperature at the machine, not at the sink. We test the heating circuit and the pump under load, and we look at the drain path, because a dishwasher that doesn't drain fully washes the next load in dirty water. We also look for scale buildup, common in this region, and for a drain hose that's lost its high loop under the sink. Then we tell you straight whether it's a part, a plumbing problem, or a habit worth changing. Call us and describe the residue you're seeing.
Dishwasher Leaving Dishes Dirty — quick answers
Should I rinse dishes before loading?
Scrape, don't rinse. Detergent needs some food soil to work against, and fully rinsed dishes can etch glassware over time. Just get the bones, pits, and big scraps out so they don't clog the filter.
Why are my glasses cloudy but the plates look fine?
That's hard water minerals, not dirt. Try rinse aid and run a dishwasher cleaner cycle. If a vinegar soak wipes the film off, it was scale. If it doesn't wipe off, the glass is etched and that's permanent.
Can a dishwasher clean if the drain is slow?
Not well. Leftover dirty water dilutes the detergent and puts food back on the next load. Check the sink air gap and the drain hose loop. If there's standing water in the tub after a cycle, it's time to call.
How it works
- Step 1
Tell us the symptom
Call us or fill in the form and describe what you hear, smell, or see. Water on the floor. A clicking compressor, a burning odor. Small details narrow the cause before anyone drives out.
- Step 2
We schedule the visit
You pick a window that fits your day, and we confirm the make and model so common parts ride along in the van. Tell us if the unit sits in the garage or on the patio. Heat changes what we check first.
- Step 3
Diagnose and repair
Our technician tests the unit, explains what failed, and lays out your options in plain words. Most repairs finish that same visit. If a part has to be ordered, you'll know before we leave.
- A real person answers
- Open 7 days
- Written quote before work starts
Questions worth asking any repair company
Ask these of anyone you let into your home — us included. Call and we'll answer all five before you book anything.
- 1Ask for their license numberThen verify it with your state licensing board rather than taking it on trust.
- 2Ask for proof of insuranceLiability cover protects you if something goes wrong in your home.
- 3Get the quote in writingIncluding the trip fee, whether it's credited against the repair, and parts.
- 4Ask how they handle callbacksIf the same fault returns, what happens? Get the answer before work begins.
- 5Check their own reviewsLook the business up independently — their Google profile, not just what they tell you.
Why homeowners call us
- Built for desert heatSummer here punishes appliances. Compressors run long, coils choke on fine dust, and garage refrigerators fight ambient air near 115 degrees. We look for heat-driven failures first, because that's usually where the trouble started.
- Any major brandWe work as an independent company on all major residential brands: refrigerators, washers, dryers, dishwashers, ranges, ovens, and freezers. One crew handles both the kitchen and the laundry room, so you aren't juggling separate calls.
- Straight explanationsYou hear what part failed and why, without a wall of jargon. If a repair doesn't make sense on an aging unit, we say that too. Then you're deciding with real information instead of guesswork.
- Six-state coverageFrom Surprise out across the Southwest, our service area covers six states. The approach doesn't change from town to town: careful diagnosis, a tidy work area, and a clear plan before we start pulling anything apart.
- All major brands, gas & electricWhirlpool, Samsung, LG, GE, Maytag, Bosch, KitchenAid and more — as an independent repair company.
- Straight answersIf it isn't worth repairing, we'll say so — often on the phone.
About this guide
If the safe checks didn't fix it, the fault is real
Describe what you found and we'll take it from there — booking takes about a minute.
- A real person answers
- Open 7 days
- Written quotes
- All major brands
- Gas & electric
Rather not call? Get a free quote →