How to Level a Dishwasher: A Step-by-Step Guide
A dishwasher that isn’t properly levelled can leak from the door seal, wash poorly due to uneven water distribution, make excessive noise or fail to drain completely. Levelling a dishwasher is a straightforward task that most homeowners can handle with a spirit level and an adjustable spanner.
Why Levelling Matters
Dishwashers are designed to operate on a perfectly level plane. If the machine tilts forward, water can spill out of the door seal gap. If it tilts left or right, water pools unevenly in the base and may not drain completely. If it tilts backward, the dispenser cup may not release detergent properly into the wash spray path.
What You Need
- Spirit level (a 300mm level is ideal)
- Adjustable spanner or pliers
- Flat-head screwdriver (some models)
- Torch (to see under the machine)
Step 1: Access the Adjustable Feet
Slide the dishwasher out from under the counter. All freestanding and built-in dishwashers have adjustable feet at the front — usually two, sometimes four. The feet screw in and out to raise or lower each corner of the machine. Some models have a rear foot that is accessible from the front by turning a hex bolt inside the base.
Step 2: Check the Level
Place a spirit level across the door sill (left to right) to check side-to-side level, then place it front to back inside the machine to check front-to-back level. Note which direction and how far the machine is out of level.
Step 3: Adjust the Front Feet
Using your adjustable spanner, turn the front feet clockwise to raise that corner or anticlockwise to lower it. Make small adjustments (quarter turns) and check the level after each adjustment. Front feet usually have a hex nut lock to prevent movement once set — loosen this before adjusting and re-tighten after.
Step 4: Adjust the Rear Foot (if applicable)
Many dishwashers have a single rear foot accessible from the front through a small slot in the base. Use a hex key or the adjustable spanner to extend or retract the rear foot. The rear of the machine should be very slightly higher than the front (1–2mm) to encourage water to drain fully to the rear drain outlet.
Step 5: Check the Door Seal Gap
With the machine level, close the door fully and check that the door seal sits evenly around the entire perimeter. Any gap will be a leak source. A properly levelled machine closes evenly with consistent seal contact all around.
Step 6: Slide Back and Secure
Slide the machine back into position under the counter. Secure the mounting brackets (found at the top of the machine) to the underside of the bench using the provided screws. This prevents the machine tipping forward when the door is loaded.
When to Call a Technician
If your dishwasher is leaking after levelling, the door seal itself may be damaged or the door hinge tension may need adjustment. These are technician tasks.
Shop Dishwashers at Oceania Appliances
We carry Bosch, Miele, AEG, Electrolux, Westinghouse and Fisher & Paykel dishwashers with free delivery across Sydney. Visit 2/14 Centre Place, Wetherill Park, call or WhatsApp 0422 489 492, or email support@oceaniaappliances.com.au. Open 7 days, 10am–8pm.