The short answer
A Empava dishwasher makes noise for a short list of reasons, and the sound tells you which. A hard rattle or grinding during the wash is nearly always something loose in the sump or a spray arm striking a rack item; a droning hum that rises and falls is the circulation pump; a periodic gurgle at the end is drain noise and is usually normal.
What you are actually seeing
- Grinding or crunching soon after the cycle starts — What it means: debris — glass, a fruit stone, a bone chip — in the sump or the chopper
- A regular knock or clatter through the wash — What it means: a spray arm hitting a tall item or a fallen piece of cutlery
- A droning hum that changes pitch with the cycle — What it means: the circulation pump working against a restriction
- Gurgling only during the drain step — What it means: normal drain noise unless it is new and loud
Causes, ranked for an Empava dishwasher
- Loading interference with the spray arms — A tall item, a pan handle or a fallen utensil stops the arm turning freely and it knocks once per attempted revolution. — Why this rank: Top of the list because it is the most common cause by a wide margin and it is disproved by spinning each arm with a finger.
- Levelling and cabinet contact — A machine that is not level, or whose side is touching the cabinet, transmits normal pump vibration into the kitchen units as a drone. — Why this rank: Second because a fitted machine is set once and never rechecked, and because the noise is easy to mistake for a pump fault.
- Debris in the sump or filter — Why this rank: Ranked here because it produces the grinding sound people find alarming, and the filter comes out by hand.
- Circulation or drain pump — Why this rank: Ranked here because everything above it produces the same complaint far more often and costs far less to correct.
- Ranking basis: Ranked for this machine because habits are free to change and cost nothing to test.
What to check, and in what order
- Spin both spray arms by hand with the racks loaded as you normally load them — Step: First — Why here: it finds loading interference immediately, which is the top cause
- Remove the lower rack and lift out the filter assembly — Step: Second — Why here: debris in the sump is visible and removable in the same minute
- Note whether the noise is in the wash or the drain phase — Step: Third — Why here: wash noise is spray arms and circulation; drain noise is the drain pump and the hose
Checks an owner can safely make
- Isolate the machine, release any cabinet retaining brackets and draw it forward, photographing how the supply and drain lines are routed before they move.
- Switch the machine off at its breaker or socket and open the door fully.
- Load the racks as normal, then turn each spray arm through a full revolution by hand and watch for contact.
- Take out the lower rack, twist out the filter assembly and rinse it, then feel around the sump for glass and hard debris.
Before you touch anything
Safety
Wear gloves in the sump: broken glass is the most common thing found there, and it is not visible against a stainless base. Unplug the appliance or switch off its breaker before removing any panel. A capacitor can hold a charge after the power is off. Never run the machine with the filter removed — debris then goes straight into the pump.
Where an owner fix ends and a service call begins
The noise persists on an empty cycle with a clean filter and free spray arms The pump drones and the machine also washes poorly, which points at a restriction rather than at loading There is a burning smell or the machine trips its circuit
The nearest pages of this kind
What this page does not cover
Generalized information: this page covers Empava dishwashers as a class, not any individual family or model run. No more specific page sits beneath it here yet, so confirm part numbers and access routes against your own machine.
Other Empava dishwasher faults
Lead Appliance Repair Technician · 12 years experience
Experienced technician with 12 years specializing in washing machine and dryer repairs across all major brands.
