The short answer
Standing water at the end of a cycle means the machine either could not move the water or could not get it away, and one look at the filter usually decides which. This is commercial-duty food-service equipment installed in a kitchen or a bar rather than a home, and its duty cycle is one no domestic machine sees, so most of what goes wrong is water quality, chemical supply and maintenance rather than component failure. That is why "filter, sump or drain screen blocked with debris" heads the ranking on this page, while "drain pump or its control failed" sits at the bottom of it.
What you are actually seeing
- Water standing in the sump at the end of the cycle
- A gurgling sink when the machine drains
- The cycle stops part way through with water in the tub
- Water backing up into the tub from the drain
- A drain that is slow rather than blocked
- Not this fault: water is on the floor rather than in the tub — Means: a leak — See: brama-dishwasher-water-leak
- Not this fault: the machine never runs a cycle at all — Means: a start fault — See: brama-dishwasher-wont-start
Likely causes, most likely first
- Filter, sump or drain screen blocked with debris — Why here: first because it is where every piece of debris in the machine ends up, and clearing it is routine maintenance rather than repair — Confirmed by: visible debris in the sump, and water that drains once it is cleared by hand
- Drain hose kinked, sagging or blocked — Why here: a hose that dips or kinks holds water permanently, and it is visible without dismantling anything — Confirmed by: a visible kink or low loop behind the machine, or water trapped in the hose
- Air gap or waste connection blocked — Why here: ranks high because a shared waste line puts the fault outside the machine entirely, and no work inside will help — Confirmed by: water appears at the air gap, or the sink gurgles and backs up as the machine drains
- New disposer connection with the knockout plug still fitted — Why here: not a fault at all but an installation error, and it produces a machine that has never drained since the day it was fitted — Confirmed by: the machine has never drained properly since installation
- Drain pump obstructed by glass, a seed or a label — Why here: a small hard object in the impeller stops the pump dead, and it is common in a machine handling real crockery — Confirmed by: a hum from the pump with no water movement, or a rattle that started at the same time
Check in this order
- Bail the water out and look in the sump — Because: the filter and sump are where the answer is most of the time and the check costs nothing
- Follow the drain hose from the machine to the waste — Because: a kink, a sag or a high loop is visible and free to correct
- Run the sink and the disposer and watch for backing up — Because: it puts the fault inside or outside the machine, which is the biggest fork in this diagnosis
- Listen at the drain step of a cycle — Because: a pump that hums without moving water means an obstruction rather than a failed pump
Owner checks, in order
- Bail the standing water out with a cup and a sponge until the sump is dry — Tools: a cup, a sponge — Time: roughly half an hour
- Remove the filter and scrap screen, clear the sump by hand and check for glass, seeds and labels — Tools: gloves, a torch — Time: roughly half an hour
- Pull the machine forward far enough to see the drain hose and straighten any kink or sagging loop — Tools: none — Time: roughly half an hour
- Run the sink taps and the disposer and watch whether the waste backs up into the machine — Tools: none — Time: a few minutes
- Start a rinse cycle and listen at the drain step for the pump running — Tools: none — Time: several minutes
- Stop condition: Stop before any test that would put a meter on live terminals.
Safety before you start
Safety
Unplug the appliance or switch off its breaker before removing any panel. A capacitor can hold a charge after the power is off. Shut the water supply off at the isolation valve before touching a hose or a fitting. Water and a live cabinet are the two hazards here and they sit next to each other. A wash cycle heats the water well above what is safe to touch. Let the machine stand after a cycle before reaching into the tub.
When to call a technician
the pump hums but no water moves after the sump is clear waste backs up into the machine whenever the sink is used there is no pump sound at all at the drain step
serviced under contract by a food-service engineer, against a daily and weekly routine the operator manual defines
Nearest pages
What this page does not cover
This page is generalized across every dishwasher sold under the Brama name; it does not cover a specific family, model or serial range, and it carries no part number for your unit. Where a page exists for a narrower scope than this one it is linked below, and it takes precedence over anything written here.
Links down: - [Common BRAMA Dishwasher Problems](/blog/brama-dishwasher-problems) - [BRAMA Dishwasher: Will Not Start or No Power](/blog/brama-dishwasher-wont-start) - [BRAMA Dishwasher: Not Heating](/blog/brama-dishwasher-heating-failure) - [BRAMA Dishwasher: Water Leak](/blog/brama-dishwasher-water-leak) - [BRAMA Dishwasher: Abnormal Noise or Vibration](/blog/brama-dishwasher-abnormal-noise) - [BRAMA Dishwasher: Door, Latch or Seal Fault](/blog/brama-dishwasher-door-seal)
Related pages
- Common BRAMA Dishwasher Problems
- BRAMA Dishwasher: Will Not Start or No Power
- BRAMA Dishwasher: Not Heating
- BRAMA Dishwasher: Water Leak
- BRAMA Dishwasher: Abnormal Noise or Vibration
- BRAMA Dishwasher: Door, Latch or Seal Fault
- BRAMA Dishwasher: Controls, Display or Error Code
- BRAMA Dishwasher: Does Not Clean or Dry
Lead Appliance Repair Technician · 12 years experience
Experienced technician with 12 years specializing in washing machine and dryer repairs across all major brands.
