How to Install a Dishwasher: A Step-by-Step Guide for Australian Homeowners
Installing a dishwasher in an Australian home is a job that many homeowners can tackle themselves if the plumbing connections are already in place. This guide walks through the process for a standard freestanding or built-in dishwasher installation, along with important notes on when to call a licensed tradesperson.
Important Safety and Legal Notes for Australia
In Australia, electrical connections for appliances are regulated. The dishwasher itself can be connected by a homeowner if it plugs into a standard power outlet (10A or 15A). However, if a new power point is required or any electrical wiring work is needed, this must be done by a licensed electrician. Plumbing connections (inlet and drain) can typically be done by a homeowner as a DIY task in most Australian states for straightforward connections, but always check your state's plumbing regulations. In NSW and Victoria, any work on a water supply fitting that requires soldering or new fittings typically requires a licensed plumber.
Tools and Materials Required
- Adjustable spanner (or open-ended spanner, 13mm and 15mm)
- Screwdriver (flat and Phillips head)
- Bucket and towels (for water spillage)
- Teflon tape (PTFE thread tape)
- Spirit level
- Tape measure
- Cable ties or hose clips (may be supplied with dishwasher)
Step 1: Confirm Connections Are in Place
Before delivery of your new dishwasher, confirm: a hot or cold water inlet (most dishwashers heat their own water, so cold water is fine), a drain connection (usually under the sink), and a power outlet within reach of the power cord.
Step 2: Prepare the Space
Measure the cabinet opening: standard dishwashers require a 600mm wide × 600mm deep × 820–870mm tall space (height is adjustable via the feet). Clear under the sink to access the inlet and drain connections.
Step 3: Connect the Water Inlet
- Turn off the water supply at the isolator valve under the sink.
- Wrap the thread on the inlet fitting with PTFE tape (3–4 turns clockwise).
- Attach the dishwasher's inlet hose to the fitting and hand-tighten, then give a quarter turn with a spanner. Do not over-tighten.
Step 4: Connect the Drain Hose
- Route the drain hose to the drain connection under the sink. Most kitchens have a dedicated dishwasher drain inlet on the trap or a 'T' piece on the outlet pipe.
- Push the hose fully onto the drain fitting and secure with the supplied hose clip.
- Ensure the drain hose forms a high loop under the counter (or use the high-loop bracket if supplied) to prevent backflow of dirty water into the dishwasher.
Step 5: Slide In and Level
Carefully slide the dishwasher into the cabinet space. Use the spirit level to confirm it is level front-to-back and side-to-side. Adjust the front feet by turning them clockwise (to lower) or anticlockwise (to raise). Most models also have a rear adjustable foot accessible from the front.
Step 6: Secure to Cabinetry (Built-In Models)
Built-in dishwashers should be secured to the underside of the benchtop using the brackets and screws supplied. For stone benchtops, use the side-mount brackets instead.
Step 7: Connect Power and Test
Plug in the power cord and turn on the water supply. Run an empty wash cycle while observing under the sink for leaks. Check all connections and tighten if any drips are present.
Need Help? Contact Oceania Appliances
If you're unsure about any step, or if you need a professional installation, contact us at support@oceaniaappliances.com.au. We can also recommend qualified plumbers and electricians in the Sydney area. Visit our Wetherill Park showroom. Open 7 days 10am–8pm.