The short answer
What this symptom means on a Vezeni dishwasher depends on how the dishwasher is built, and on this one the order runs like this. First — A blocked filter and sump. Last, and the only one that is a technician's job from the outset — A failed drain pump. Start at the top: those checks are free and need nothing opened.
What you actually observe
- Water standing in the tub at the end of the cycle — The clearest version of this fault.
- A hum during the drain step with nothing moving — Blocked path or failed pump.
- It drains slowly and leaves a shallow pool — A restriction rather than a blockage.
- NEAR MISS: a little clean water always sits in the sump — That is normal on most machines and keeps the seals wet.
Causes, most likely first on this build
- A blocked filter and sump — The filter and the sump beneath it collect everything the load carries in. Once they are packed the pump cannot move water past them, and the cycle ends with water standing in the tub. Ranked first on a Vezeni: a countertop unit sits in the warmest air in the kitchen, right beside the things that make the kitchen warm.
- A kinked or crushed drain hose — The hose runs from the machine into the cabinet next to it, and it is crushed whenever the machine is pushed back into its space. Second here, because a hand-filled, hand-emptied unit depends on the owner's routine more than on any part inside it.
- The disposal knockout plug still in place — When a dishwasher is plumbed into a new waste disposal, a moulded plug has to be knocked out first. Third, once the two above are clean: it is free, immediate, and it decides whether this is a fault at all.
- A failed drain pump — A pump that has jammed or burned out gives a hum, or silence, with no water moving. Last, and the reason the order above matters: it is the rarest cause and the only one that is not an owner fix on a unit this small.
Check in this order, and why
- Lift the filter out and look into the sump — Owner-serviceable and usually full.
- Open the cabinet beside the machine and follow the hose — The kink is where the machine was pushed back.
- Ask whether the disposal is new — A machine that has never drained has never had the plug out.
What an owner can safely check
- Check the tap adapter is fully seated and the drain hose is hooked properly over the sink — A countertop machine is coupled by hand for every wash, and that is the joint that leaks or fails to fill.
About 10 min
- Bail out the standing water, then lift the filter out and clear the sump underneath — Expect debris. This is designed as owner maintenance and it is the commonest single cause.
Tools: a cup, a cloth, a soft brushAbout 25 min
- Lift the cover off the air gap on the worktop, if there is one, and clear it — A packed air gap blocks the drain completely and takes a minute to clear.
About 10 min
- STOP HERE if the pump hums with the filter, hose and air gap all clear — That is where an owner check ends and a service call begins.
Before you open anything
Safety
Switch the machine off at the isolating switch under the worktop, or unplug it, before opening any panel, and shut the supply valve under the sink. A capacitor can hold a charge after the power is off.
When to call a technician
Call when the filter and sump are clear, the air gap is clear, the hose has no kink and the knockout plug is accounted for, and the machine still holds water. A pump or a check valve means pulling the machine out of its space, and that is where the owner's part ends.
Where to go next in this class
What is deliberately not on this page
This page is written for the Vezeni dishwasher as a class, not for one family or model line. Where a family- or model-specific page exists for your machine it is linked above, and it is the more specific answer. Deliberately not here: error-code tables, pump and board part numbers and any plumbing specification for your installation.
Lead Appliance Repair Technician · 12 years experience
Experienced technician with 12 years specializing in washing machine and dryer repairs across all major brands.
