Appliance Spares
Quick answer: On Westinghouse, Simpson and Electrolux-built washers, E10 means water is not getting in: tap, inlet hose filter, inlet valve, then the water-level sensor. EF0 (a zero, often read as EFO) means water where it should not be: overflow, a leak, a stuck pressure sensor or a pump not clearing. E20 and E21 mean water is not getting out. Valves, sensors, pumps and door locks are stocked in Australia and dispatched from Sydney the day you order (12pm Sydney cut-off). Match the model number on the sticker.
Last updated September 2026
E10, EF0, E20 and E21 on one page
The Westinghouse has stopped mid-cycle with E10 flashing, or the Simpson is sitting on a full tub showing EF0. Westinghouse, Simpson and Electrolux machines sold in Australia share one control platform, so the codes and the parts are the same.
| Code | What the machine is saying | Check first | The part |
|---|---|---|---|
 E10 | Water did not reach the set level in time | Tap fully open, hose not kinked, hose filter clean | Replacement ELECTROLUX WASHING MACHINE INLET VALVE 2-WAY |
 E10 on warm or hot cycles only | Hot side not filling (top loaders) | Hot tap open, hot hose filter clean | Simpson Westinghouse Washing Machine Inlet Valve Hot 10MM |
 E10 but the tub visibly fills | Controller cannot read the water level | Pressure hose to the sensor clear | SIMPSON ELECTROLUX WASHING MACHINE WATER LEVEL SENSOR |
 EF0 — a zero, often read as EFO | Water where it should not be: overflow, leak, sensor stuck high | Detergent dose, dry base tray, pump filter | Electrolux Washing Machine Analogue Pressure Switch EWF1083, EWF1481, EWF1074 |
 E20 | Water did not drain in time | Pump filter cap cleaned, drain hose not kinked or too high | ELECTROLUX Washing Machine DRAIN PUMP |
 E21 | Drain timed out, spin refused | Coins at the pump, hose outlet under about a metre | Genuine SIMPSON WASHING MACHINE DRAIN PUMP SWT754 SWT954 SWT1076 |
 Won’t start after the code | Door not confirmed locked | Door shut firmly, nothing caught in the seal | Simpson Washing Machine Door Lock Switch, SWF12743 SWF12843 SWF14743 |
The full family list is on our appliance error codes page.
The 60-second checks before you buy anything
Most E10 and E20 codes are a tap, a hose or a filter. Machine off at the power point, then:
- Tap fully open. A half-open tap times out the fill. Dual-fill machine: check both.
- Inlet hose kink. Pull the machine out and look.
- Inlet hose filter. Tap off, unscrew the hose at the machine end, rinse the mesh screen.
- Pump filter cap. Front loaders: the round cap low on the front. Towel down, turn it out slowly, clear the coins and bobby pins.
- Drain hose. Not kinked, not too deep in the standpipe, outlet no higher than about a metre.
- Power reset. Off at the wall for two minutes, then a rinse-and-spin.
E10: the machine cannot get water in
E10 is a timer. The controller opens the inlet valve, waits for the water-level sensor to report the set level, and stops if it does not see it in time. Suspects, in order: tap, hose, hose filter, inlet valve, level sensor.
Checks clean, still slow or no fill? The inlet valve. On EWF and SWF front loaders it is the two-way unit behind the hose connection: Replacement ELECTROLUX WASHING MACHINE INLET VALVE 2-WAY. Our Electrolux inlet valve guide separates slow-fill from no-fill.
Top loaders have separate hot and cold valves, so E10 only on warm or hot cycles points at the hot side: Simpson Westinghouse Washing Machine Inlet Valve Hot 10MM. Older Simpson top loaders take the paired valve: 2 x Simpson Hoover Washing Machine Inlet Valve With Seals. The Simpson not filling guide covers the swap.
Tub visibly fills but E10 still lands? The controller cannot read the level: the water-level sensor, a small pressure switch up top with a thin hose to the tub: SIMPSON ELECTROLUX WASHING MACHINE WATER LEVEL SENSOR. Blow through that hose first; a blocked or split one gives the same code for the price of nothing.
EF0: a zero, not an O
EF0 is a zero, though the seven-segment display keeps that to itself, hence all the searches for “EFO error”. It is the mirror of E10: the level passed its top limit, the base-tray float lifted, or the pump ran and the tub stayed full.
- Detergent. Too much powder, or top-loader detergent in a front loader, fools the sensor with suds. Run an empty hot cycle with none.
- Water in the base. Torch underneath. A wet tray means a leak: split hose, weeping pump, drawer overflow. Find it before any part.
- Pump filter. A pump that cannot clear the tub in time trips the overflow logic on some models.
Base dry, detergent fine? The level sensor is stuck high: on EWF front loaders the Electrolux Washing Machine Analogue Pressure Switch EWF1083, EWF1481, EWF1074, on top loaders the water level sensor above. If the filter was packed and the code came back, the pump is the suspect.
E20 and E21: the water will not leave
E20 is the drain timer: pump ran, sensor still saw water, machine stopped. E21 is the same fault on newer models, often with a spin that never starts. Cap clean, hose clear, tub still full: the pump. Humming but moving nothing means a jammed impeller; silent means a dead winding.
On EWF and SWF front loaders the pump sits behind the filter cap: ELECTROLUX Washing Machine DRAIN PUMP. Simpson top loaders carry it under the base: the Genuine SIMPSON WASHING MACHINE DRAIN PUMP SWT754 SWT954 SWT1076, and the Genuine SIMPSON Front loader WASHING MACHINE DRAIN PUMP suits Models: SWT9542, SWT8542, WF10761, SWF85561 for the larger SWT and SWF families. The Electrolux not draining guide shows where it lives.
Won’t start after the code: the door lock
Filter cleared, power reset, and now it will not start at all; the door light flashes or a padlock shows. That is the door lock switch, E10’s companion fault: a lock that will not confirm stops the cycle before the fill, and a few hundred stop-and-restart cycles while you chased a code can finish it off.
It sits beside the door catch on two screws; the Electrolux door lock switch guide covers the swap. Simpson SWF front loaders take the Simpson Washing Machine Door Lock Switch, SWF12743 SWF12843 SWF14743. Westinghouse WWW models use the Westinghouse Washing Machine DOOR LOCK SWITCH WWW9024M5SA WWW9024M5WA. Electrolux EWF splits by generation: the Electrolux Washing Machine Door Lock Switch EWF7524D3WB, EWF9024Q5WB, EWF8024Q5W for current models, the earlier Electrolux Washing Machine Door Lock Switch for the EWF1074 and EWF1282 range. Never bypass the lock; the interlock is what stops a spinning drum from opening.
Where the model sticker is and how to match it
Front loaders: the rim of the door opening, usually low on one side, or the top edge of the door. Top loaders: inside the lid or on the back panel near the hoses. Two numbers matter: the model (WWW9024M5WA, SWF12743, EWF1074 and so on) and the PNC, the product number code, which tells the Electrolux parts system which build you have. Same model, different PNC, can mean a different pump or door lock.
Search the model number on the site first. The Westinghouse models hub lists parts by model, the Westinghouse brand page holds everything under that badge, and the washing machine parts store covers Simpson and Electrolux. SWF owners have the SWF parts guide; the Westinghouse parts guide and Simpson parts guide cover the rest. Sticker faded? Our find your model page shows where to look, or send a photo with model and PNC via the contact page; we check before you order.
DIY or repairer?
Inlet valves, level sensors, door locks and drain pumps on this family sit in the $15–60 band, and each is a half-hour job with a Phillips head and the water and power off. A repairer call-out in most Australian cities runs $100–165 before the part, so a valve or pump swap is usually worth doing yourself. Stop and call someone when the base is wet and you cannot find the leak, the machine trips the safety switch, or the code changes to one you have not seen. Controllers are the last suspect, not the first; never fit one on a guess.
If the badge on your machine says Electrolux rather than Westinghouse or Simpson, the same fixes apply — our Electrolux E10 water-supply guide walks the identical checks on the EWF family. And because the three brands share parts across badges, the PNC on the sticker matters as much as the model number: where to find the Westinghouse model number and PNC shows exactly where to look.
Frequently asked questions
Q: What does E10 mean on a Westinghouse washing machine?
A: It could not fill to the set level in time. Check the tap is fully open, the hose is not kinked and the hose filter is clean. Still slow: the inlet valve. Tub fills anyway: the water-level sensor or its hose.
Q: Is it EF0 or EFO on a Simpson washing machine?
A: EF0, with a zero; the display makes it look like an O. It means water where it should not be: an overflow, a leak into the base tray, or a level sensor stuck high. Check detergent dose and the base tray first.
Q: Why does my Simpson show E20 after I cleaned the filter?
A: Check the drain hose is not kinked or too deep in the standpipe, with its outlet no higher than about a metre. Hose clear and water still in the tub: the drain pump.
Q: Can I bypass the door lock to get a cycle running?
A: No. The interlock is what stops the door opening on a spinning drum. Replace the lock switch: two screws, the $35–60 band, about twenty minutes.
Q: Do I need the PNC as well as the model number?
A: Yes. The same model name can carry different pumps or door locks across its run, and the PNC tells them apart. Both are on the model sticker; send both and we check before you order.
Find the sticker, note the model number and PNC, and search the model on the site. Not sure? Send a photo via our contact page and we will match it before you order. Parts in stock are dispatched from Sydney’s Northern Beaches the day you order when it is in by 12pm Sydney time.
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.
