The short answer
Most dishwasher noise is something touching something it should not: cutlery through the basket, a spray arm hitting a tall item, or debris in the sump. The phase of the cycle in which the noise happens narrows it quickly, because fill, wash and drain each use different components.
What you are seeing
- Rattling during the wash — Means: items touching, or a spray arm striking the load.
- Grinding at the base — Means: debris in the sump or a hard object in the pump.
- A loud hum during fill only — Means: the inlet valve or the plumbing.
- A knock in the pipes when the machine fills or stops — Means: water hammer in the house plumbing.
- A drone that has grown gradually louder — Means: the wash pump or the motor bearing.
- Text: Observations that place the fault, and the near misses that mean a different one. A gentle sloshing and a periodic change in pitch is normal cycling and not a fault. Noise only at the drain step belongs on the drainage page.
Ranked causes on this platform
- Items touching, or a spray arm striking the load — Why: It is the most common and it is free to test: spin the arms by hand with the racks loaded and the fault reveals itself.
- Debris, glass or a fruit stone in the sump — Why: It grinds against the impeller and is reachable with the filter out.
- The machine being asked to work beyond its designed capacity — Why: Specific to compact appliances and easy to miss because nothing has failed: a load, a room or a duty cycle that a full-size machine would handle without comment is at the limit here, and the machine reports it as a performance complaint.
- Spray arm bearing worn or the arm loose — Why: A wobbling arm makes a rhythmic rattle and eventually strikes the racks.
- Water hammer in the house plumbing — Why: A bang when the inlet valve shuts is a plumbing characteristic, not a machine fault.
- Inlet valve buzzing on fill — Why: It is loud but harmless and easy to identify by its timing.
- Wash or drain pump bearing worn — Why: Identified when the noise is a steady drone through the whole wash with a clear sump.
- An installation shortcut carried over from a previous home — Why: Specific to appliances that move with their owner: a hose routed to suit the last kitchen, a faucet adapter reused, or a machine standing on a surface that flexes will all produce faults that look like component failures.
- Text: This is a compact dishwasher, and compact machines fail differently from full-size ones. Capacity comes first: the drum, the pump, the fan and the water path are all smaller, so the machine is far more sensitive to being asked for a full-size result than it is to any component defect. Restriction and load causes therefore rank above component failure throughout this list, and installation — clearance, levelling and hose routing — is part of the fault picture rather than a preliminary to it. One practical point shapes the order here: an apartment-scale appliance is usually installed by whoever lives with it, so the installation is recent, was done without a fitter, and is a live variable in a way it never is on a machine that was plumbed in once and left.
What to check, in order
- Check the installation and the clearance around the machine first — Why: Compact appliances are put where they fit rather than where they work best, so a blocked intake or an unlevel worktop is a live cause on this platform rather than a background condition.
- Note which phase of the cycle the noise happens in — Why: Fill, wash and drain use different components, so the timing does more than the sound to narrow the fault.
- Load the racks and spin both spray arms by hand — Why: The top cause, and this reproduces the strike without running the machine.
- Remove the filter and clear the sump — Why: high in the ranking, and the place hard objects actually collect.
- Run the machine empty — Why: An empty run removes the load entirely; noise that survives it is mechanical.
- Listen at the supply pipes during fill — Why: Last, and the check that identifies house plumbing rather than the appliance.
- Ask when and by whom the machine was last installed — Why: On an apartment-scale appliance the answer is usually recently and by the owner, which moves the installation to the top of the list rather than the bottom.
- Text: Each step either finds the fault or removes the next most likely cause from the list above.
Step by step
- Measure the clearance around the machine against the manual and confirm nothing blocks its intake or exhaust, then check it stands level on a firm surface. — Tools: a tape measure, a spirit level
About 15 min
- Run a cycle and note whether the noise occurs during fill, during the wash, or during the drain step. — Tools: pen and paper — Time: 2 hours
- Load the racks as usual, then spin each spray arm through a full turn by hand and watch for anything it touches. — Tools: none
About 10 min
- Switch off at the spur, remove the filter and clear the sump by hand, watching for glass fragments and fruit stones. — Tools: gloves, a torch
About 20 min
- Check each spray arm is clipped on firmly and does not wobble on its spindle. — Tools: none
About 10 min
- Run the shortest programme with the machine completely empty and listen again. — Tools: none — Time: 1 hour
- Listen at the supply pipe under the sink as the machine fills and stops; a bang at valve closure is water hammer in the plumbing. — Tools: none
About 10 min
- Check every connection made at installation — the supply, the drain, any faucet adapter and the levelling feet — before you accept that a component has failed. — Tools: a spirit level, a spanner
About 20 min
- Text: Checks a homeowner can safely make. Stop at the first step that would need a meter on live terminals.
Safety first
Safety
Switch the machine off at its spur or breaker before reaching into the sump or removing the filter. A capacitor can hold a charge after the power is off. The sump collects broken glass and knife points — wear gloves and look before you reach. Never run the machine with a panel removed to locate a noise, and do not open the door mid-cycle on a hot programme.
When to call a technician
Call a technician when the noise survives an empty cycle with a clear sump and firmly fitted spray arms, or when a drone grows steadily louder over weeks. Loading, the sump and the spray arms are owner work; pump and motor bearings are not. On a compact machine most of the boundary sits in the installation and the load rather than inside the cabinet, so work through both fully before booking a call.
Sources — No warehouse fact rows exist for Equator at this address, so this page prints no frequency, share or reliability figure. Every number above is a safety constant from the authoring allowlist, cited here with its publisher.
General guidance- 29 CFR 1910.147 — The control of hazardous energy (lockout/tagout) — US Occupational Safety and Health Administration, fetched 2026-09-06
Nearby pages
What this page does not cover
Common Equator Dishwasher Problems — Slug: equator-dishwasher-problems — Relation: the routing page for this brand and appliance
This page is generalized information. It covers Equator dishwashers as a class: it carries no model numbers, no family-specific error-code table and no wiring detail, because no fact rows for those exist behind it. Compact platforms share filters, inlet valves and drain pumps across the segment; the part is matched by its physical fitting rather than by a brand catalogue number. Portable and slim models are frequently moved and re-connected, so the install itself — hose height, levelling, the faucet adapter — is part of the fault picture rather than a preliminary. The more specific pages listed below sit beneath this one, and where one of them differs from anything general said here, it takes precedence.
Lead Appliance Repair Technician · 12 years experience
Experienced technician with 12 years specializing in washing machine and dryer repairs across all major brands.
