Appliance Spares
Quick answer: Omega dishwashers use a straightforward E1–E5 fault code system covering inlet (E1), drain (E2), temperature sensor (E3), base overflow (E4), and heating element (E5). Because Omega has no dedicated Australian parts service, Oz Appliance Spares is one of the few places in the country where you can source genuine replacement parts for the ODW and OFI ranges.
Not sure which one fits? Match your model number or check the sticker inside the door.
The part that fixes this
- OMEGA CLASSIQUE DISHWASHER WATER DRAIN PUMP 5045176239378 0018
- OMEGA DISHWASHER HEATING ELEMENT 1800W
- Omega Dishwasher Inlet Valve ODW717XB, OFI700, ODW700B OWD700W
Not sure it is the same on your machine? See every part listed by Euromaid Omega model number.
Last updated September 2026
Decode any appliance error code — instant lookup
Omega drain pump 674000600074 — $32.95 · find your model
What do Omega dishwasher error codes mean?
Omega dishwashers sold in Australia—predominantly the ODW series of freestanding and semi-integrated models—use a simple E-code fault system that displays directly on the control panel. The codes run from E1 to E5 and each maps to a specific system: water inlet, drainage, temperature sensing, base overflow, and heating.
Unlike major brands with dedicated Australian service networks and spare parts operations, Omega does not operate a direct parts counter in Australia. This means that when something fails, most owners find themselves unable to source the correct component through normal channels. Oz Appliance Spares specifically stocks Omega dishwasher parts to address this gap.
Before ordering any part, confirm your model number from the sticker located on the inner door edge or door jamb. Omega models sold in Australia include: ODW300X, ODW507TXB, ODW507TWB, ODW600S, ODW600W, ODW700X, ODW701BX, ODW702X, ODW702W, ODW702WB, ODW702XB, ODW704WB, ODW707XB, ODW717XB, ODW717WB, and the OFI700 integrated model. Not all fault codes appear on all models—some older units display a blinking-light pattern rather than an alphanumeric code.
Omega dishwasher error codes at a glance
| Code | System | What it means |
|---|---|---|
| E1 | Water inlet | Machine did not fill within the expected time; inlet valve fault, supply issue, or blocked strainer |
| E2 | Drainage | Water did not drain within the expected time; blocked filter, kinked hose, or faulty drain pump |
| E3 | Temperature sensor (NTC) | Temperature sensor not reading within expected range; sensor or wiring fault |
| E4 | Anti-flood / base overflow | Water detected in the sealed base tray below the drum; flood-protection float switch triggered |
| E5 | Heating element | Water not being heated to target temperature; heating element fault |
What causes an Omega E2 drainage fault?
The E2 code fires when the machine cannot empty the drum within the allotted drain time. As with any dishwasher drainage fault, the cause is almost always mechanical rather than electronic, and the majority of E2 faults are cleared without any parts replacement.
| Cause | How to identify it | Likelihood |
|---|---|---|
| Blocked filter assembly | Filter visibly clogged; standing water remains in drum after cycle completes | Very common |
| Kinked or pinched drain hose | Sharp bend in hose at the rear of the machine or at the sink waste connection point | Common |
| Blocked or incorrectly fitted waste connection | Knock-out plug not removed from sink waste branch, or grease build-up narrowing the opening | Common |
| Pump impeller obstruction | Filter is clean and hose is clear, but drum won’t drain; faint humming during drain phase | Less common |
| Faulty drain pump motor | Impeller spins freely with no obstruction, but pump does not move water; electrical failure | Less common |
How to fix an Omega E2 drainage fault
- Cancel the running programme and turn the machine off at the wall socket.
- Open the door and use a jug and towels to remove any standing water from the drum.
- Slide out the bottom rack to expose the filter assembly in the centre of the tub floor.
- Grip the cylindrical micro-filter, rotate it anticlockwise, and lift it free; then remove the flat coarse mesh filter sitting underneath it.
- Take both filters to the sink and clean them under running water, using a soft brush to dislodge any compacted food debris. Reseat them firmly when done.
- While the filters are removed, shine a torch into the sump cavity and check the pump impeller for obstructions—small fragments of glass, bone, or hard food can jam the impeller entirely. Remove any debris with long-nose pliers.
- Pull the machine away from the cabinet slightly and inspect the drain hose along its full run to the sink waste fitting. Straighten any kinks. Confirm the hose forms an elevated anti-siphon loop before dropping into the waste connection—a loop that has collapsed or been pushed too low can cause siphoning and trigger E2.
- Check the waste fitting connection point under the sink. If a knock-out plug was never removed from the dishwasher branch when the machine was installed, remove it now. Clear any grease or debris from the opening.
- Restore power, run a short rinse programme, and listen for the drain pump during the drain phase—it should run actively for 60–90 seconds.
- If E2 persists after all of the above checks, the drain pump is the most likely faulty component and requires replacement. Part number 674000600074 ($32.95) is the drain pump for a range of Omega Classique models—confirm compatibility with your model sticker before ordering.
Frequently asked questions
Why is it so difficult to find Omega dishwasher parts in Australia?
Omega does not operate a direct parts or service network in Australia. Because the brand is sold through select retailers without a dedicated aftermarket parts operation, most appliance parts suppliers do not carry Omega components. Oz Appliance Spares specifically sources and stocks parts for the Omega ODW and OFI range to fill this gap—including drain pumps, heating elements, inlet valves, and door switches—as these are genuine parts not readily available elsewhere.
My Omega shows E4—what should I do first?
E4 means the anti-flood float switch in the base tray has been activated by water that has escaped the drum. Do not continue running the machine. Disconnect power, then carefully tilt the dishwasher forward approximately 45 degrees (with the door closed) and hold it for 30–60 seconds to drain the base tray. Once upright and dry, identify the source of the leak before running another cycle—common causes are a perished door seal, loose hose connection, or overfilling from a stuck inlet valve.
What does E3 mean on an Omega dishwasher and is it expensive to fix?
E3 indicates the NTC thermistor (temperature sensor) is not reading correctly. The thermistor monitors water temperature throughout the wash and rinse cycles—if it fails open or short, the control board raises an E3 fault rather than risk running a cycle at an unknown temperature. The thermistor is a low-cost component and replacement is straightforward, typically requiring access through the tub interior or sump area depending on your model.
Can I use generic or non-genuine parts in my Omega dishwasher?
For mechanical parts like drain pumps, inlet valves, and heating elements, genuine compatible parts are strongly preferred over generic alternatives. Tolerances, flow rates, and electrical ratings must match the original specification or the machine may fault again or fail prematurely. The parts stocked by Oz Appliance Spares are genuine components matched to Omega ODW and OFI model numbers, not generic substitutes.
How do I find the model number on my Omega dishwasher?
Open the dishwasher door fully and inspect the inner edge of the door itself and the door jamb on both sides. The model sticker is usually on the left or right inner door frame, and will show the model number (e.g. ODW702XB), serial number, and electrical specifications. Note both the model and serial numbers before searching for or ordering parts.
Related guides
- Westinghouse Dishwasher Error Codes — Fix Guide Australia
- Haier Dishwasher Error Codes — Fix Guide Australia
- Hard-to-Find Appliance Brand Parts — Australian Brand Hub
- Part Finder Quiz — find parts by model number
Ready to fix it?
Select the part that matches your fault and Omega model below. Omega parts are not widely available in Australia—these are genuine components stocked specifically for ODW and OFI series machines. If you’re unsure which part suits your model, use the Part Finder quiz with your model number from the door sticker.
- Omega drain pump 674000600074 — $32.95
- Omega heating element 1800W 674001100053 — $23.85
- Omega inlet valve 674000200032 (ODW717XB, OFI700, ODW700B/W) — $24.85
- Omega door switch ODW600S / ODW600W / ODW700X / ODW701BX — $25.85
- Omega door switch ODW300X / ODW507TXB / ODW507TWB / ODW704WB — $34.55
- Browse all Omega dishwasher parts
Use the Part Finder quiz · enter your model number from the door sticker for a confirmed parts match.
Disclaimer: this article is general information only and is provided without warranty of any kind. Appliance designs vary between models and production runs — always follow the manufacturer’s instructions, switch off and unplug the appliance before starting any work, and confirm parts against the model number on your appliance’s model sticker. Any repair is undertaken at your own risk and Oz Appliance Spares accepts no liability for injury, loss or damage arising from work performed after reading this guide, to the maximum extent permitted by law. If in doubt, use a qualified technician.
