You run a full cycle and the dishes come out gritty, filmed, or still dirty, so you end up rinsing everything by hand anyway. Or you open the door to standing water sitting in the bottom. Both are common dishwasher calls across the Denver Metro, and both usually trace back to one of the two pumps that do the real work.
What you’ll notice
A cleaning problem and a draining problem look different. Poor cleaning shows up as grit or film left on dishes, food redeposited on the top rack, or detergent that isn’t dissolving. A drain problem shows up as water pooled in the sump after the cycle, sometimes with a code like Bosch’s E24 or the GE control calling a failure to drain. Knowing which one you have points straight at the cause.
What’s actually failing
A dishwasher runs on two pumps with two jobs. The circulation, or wash, pump drives water up through the spray arms; when it weakens or its impeller wears, the arms spray with no force and dishes come out dirty. The drain pump empties the tub between fills and at the end; when it fails or clogs, water stays behind. Around them sit the parts that share the blame: a clogged filter, spray-arm jets plugged with scale or debris, or a jammed chopper. The symptom tells us which system to look at first.
The Colorado detail: hard-water scale
Denver-area hard water is rough on dishwashers. Mineral scale slowly plugs the fine spray-arm jets and cakes the filter, so even a healthy pump can’t clean well until they’re cleared. When a dishwasher “stopped cleaning” over months rather than overnight, scale build-up is usually part of the story, and clearing it is a far cheaper fix than assuming the machine is done.
Why it isn’t worth guessing
Weak cleaning could be the wash pump, the spray arms, the filter, or a water-inlet problem, and standing water could be the drain pump, a clogged filter, or the drain line. Buy a pump when the real issue was a plugged filter and you’ve spent money on a dishwasher that still won’t clean. We test the wash and drain systems, find the actual fault, and confirm clean dishes and a dry tub before we leave.
Repair or replace?
A circulation or drain pump, a filter, or spray arms are affordable parts, and on most dishwashers the repair is well worth it against a new install. We’ll be honest if it isn’t, such as an older unit with a failing pump on top of a leaking tub or dead control, and you’ll hear that before any parts go in.
Dishwasher repair across the Denver Metro
We handle dishwashers that won’t clean or drain and full dishwasher repair in Denver, Aurora, Lakewood, Westminster, Arvada, Thornton, Centennial, Highlands Ranch and across the metro, on every major brand, including GE. For a specific drain code, see our write-ups on the Bosch E15/E24 and GE not-draining faults.
BOOK ONLINECALL (303) 214-1240
Dishwasher not cleaning — FAQ
Why are my dishes coming out gritty when the dishwasher runs fine?
If the cycle runs but dishes stay dirty, the water usually isn’t reaching them with force. That points to a weak circulation pump, spray-arm jets plugged with scale, or a clogged filter, rather than anything wrong with the cycle itself.
Is standing water in the bottom always the drain pump?
Not always. A clogged filter or drain line gives the same pooled water as a failed drain pump. We check which one it is instead of replacing the pump on a hunch.
Will cleaning the filter fix it myself?
Clearing the filter can help and is worth doing, but if the pump, spray arms, or inlet are the real problem the dishes stay dirty. When a filter clean doesn’t fix it, that’s the point to have it looked at.
Do you work on all dishwasher brands?
Yes. We diagnose and repair cleaning and draining faults on every major brand across the Denver Metro. The wash pump, drain pump, filter, and spray arms work the same way across most machines.
FiXiFY Appliance Repair — 7030 E 46th Ave Dr, Unit A, Denver, CO 80216 · (303) 214-1240 · support@fixifycolorado.com