The short answer
A countertop dishwasher is not bolted to anything. It sits on a work surface with a hose hooked over the sink, and that is where most of its noise comes from. Check how it stands and where the drain hose ends before you look inside it, because a machine rocking on an uneven counter or a crumb under one foot will drum against the worktop for its whole cycle.
What you are seeing
- A drumming or booming that fills the kitchen — Note: The machine is not standing flat, so the worktop is acting as a soundboard for normal pump vibration.
- Gurgling and slurping from the sink during the drain step — Note: The drain hose end is at the wrong height or is lifting out of the sink. It is plumbing rather than machine.
- The machine shuffles across the counter during the cycle — Note: Feet on a mat or a wet surface, plus an unbalanced load. It is worth stopping before it walks to the edge.
- A rhythmic knocking that matches the spray arm going round — Note: In a small tub the clearance is tight, so a tall item or a handle catches the arm on every turn.
- A single knock when the machine takes water — Note: Valve closing against the faucet supply. It is a plumbing effect and not a fault in the machine.
- A hard grinding through fill and wash — Note: Something solid has reached an impeller. Stop the cycle and check the sump screen.
Ranked causes on this brand
- The machine not standing flat and firm on all its feet — Why this rank: First because it is a portable appliance placed on a work surface with a seam, a mat, a crumb or a slope under it, and any one of those turns pump vibration into a drum that fills the room.
- Drain hose position and the noise it makes at the sink — Why this rank: Second because the hose is hooked over a sink rim rather than plumbed, and its height and whether its end is above or in standing water decide whether draining is quiet or a series of slurps.
- Spray arm striking the load in a small tub — Why this rank: Third because the tub is compact and the clearance above the arm is measured in fractions, so a single tall item produces a knock that owners assume is mechanical.
- Something solid in the sump against an impeller — Why this rank: Fourth: the screen at the bottom of the tub is small, and a fragment of glass or a fruit stone that gets past it reaches the pump directly.
- Fill valve knock when the machine stops taking water — Why this rank: Fifth because it is a property of the house plumbing rather than the appliance, and it happens once per fill rather than continuously.
- Pump bearing wear — Why this rank: Last because everything above it is more common and free to check, and because a pump on a licensed badge is a replacement unit rather than a serviceable part.
What to check, in order
- Push down on each corner of the machine and try to rock it — Why: A machine that rocks explains a drumming noise outright, and it is the single most common cause on a countertop appliance.
- Note which step of the cycle the noise happens in — Why: Fill, wash, drain or throughout. This separates the plumbing causes from the mechanical ones before anything is opened.
- Watch the drain hose at the sink during the drain step — Why: Gurgling and slurping are about the hose end, not about the pump, and they need no repair at all.
- Open the machine and spin the spray arm by hand with the baskets loaded as you normally load them — Why: A knock that reproduces by hand is a loading problem and costs nothing to fix.
- Take out the sump screen and look underneath it with a torch — Why: This is where a grinding noise lives, and it is the only place inside the machine worth checking first.
Checks you can do safely
- Unplug the machine, lift it slightly and wipe the counter underneath, then set it down and press each corner in turn to check it does not rock. — Tools: cloth — Time: ten minutes
- Move the machine off any silicone mat, drainer tray or towel and set it directly on a clean flat area of worktop. — Tools: none — Time: five minutes
- Run a short cycle and write down whether the noise happens at fill, during wash, during drain, or all the way through. — Tools: none — Time: one short cycle
- Hook the drain hose over the sink rim so its end sits well above any standing water and cannot slip, and secure it if the machine came with a clip. — Tools: none — Time: five minutes
- Load the machine as you normally would, then spin the spray arm by hand through a full turn and move anything it touches. — Tools: none — Time: five minutes
- Unplug the machine, lift out the sump screen and clear any glass, seeds, stones or labels with a plastic scoop and a torch. — Tools: torch, plastic scoop — Time: a quarter of an hour
Before you open anything
Safety
Unplug the machine before reaching into the sump, and assume there may be broken glass under the screen: use a torch and a plastic scoop rather than bare fingertips. This appliance sits on a counter beside a sink, so keep its cord and its outlet clear of any route that water can take. Never move the machine with water still in the tub, and never lift it by the door. Do not run it with a panel removed to listen to it, and let it cool before opening it at the end of a cycle. Unplug the appliance or switch off its breaker before removing any panel. A capacitor can hold a charge after the power is off. — Id: unplug-before-service
Where the service line falls
The machine stands flat and firm, the hose is positioned properly, the arms turn freely and the sump is clear, and a grinding continues through the whole wash. The noise is a continuous rumble or whine that starts the instant the pump does and does not change with the load or the water level. The noise arrived together with a leak, because a leaking pump seal and a failing bearing usually come from the same place. You can see water underneath the machine on the counter after a cycle, which is a leak rather than a noise problem and should stop use. A pump is needed, because on a licensed badge there is no open parts catalogue and support runs through the seller rather than a factory service network.
Nearest pages
What this page does not cover
This page is generalized across every countertop dishwasher sold under this badge and describes the tank-or-faucet, sink-drain arrangement common to that class. It does not cover a specific model family, and it does not cover built-in or freestanding full-size dishwashers, which are plumbed, fixed in place and quiet for entirely different reasons. The rating plate on the back of the machine, not the badge on the front, names the actual manufacturer and importer; that plate is what a seller support desk will ask for, and under a licensed name it is the only reliable way to tell one production run from another.
Links down: - [Farberware Dishwasher: Will Not Drain](/blog/farberware-dishwasher-drainage-failure) - [Farberware Dishwasher: Water Leak](/blog/farberware-dishwasher-water-leak)
Lead Appliance Repair Technician · 12 years experience
Experienced technician with 12 years specializing in washing machine and dryer repairs across all major brands.
