- Appliances
- Washing machines
E4
Hoover E4 on washing machine: excess foam or water detected
Risk level
Medium
Proceed carefully and stop if the check is unclear.
Urgency
Medium
Quick answer
E4 (or E04 / 4 LED flashes with a 5-second pause) on Hoover washing machines and washer-dryers means too much foam and/or water is in the drum. Check for heavy suds from excess soap powder or non-machine detergent, clean the dispenser drawer, and run an empty 60 °C cottons maintenance wash.
Safety first
Stop and check this first
- Never use acid products (such as vinegar) or aggressive detergents to clean the dispenser drawer, and never put powder detergent into Autodose (Care Dose) compartments, as this can damage internal seals and the dosing system.
- Before opening the porthole door or cleaning the filter after an E4 alarm, make sure the water level is below the door opening and unplug the washing machine from the electrical socket.
Safe checks you can perform
- Check the drum for heavy suds and verify detergent type and dose
- Remove and clean the detergent dispenser drawer under running water
- Run an empty Cottons 60 °C maintenance wash cycle
- Service engineer inspection of water level and drainage system
Leave these tasks to a qualified professional
- Do not attempt this professional task: Verify Care Dose water hardness settings (HL1-HL3) and test water level control
- Do not attempt this professional task: Flush leftover soap residue with a 60 °C maintenance cycle and check the drain filter
What a technician must be able to justify
Technician visit
These are the steps they must carry out and show you. Tick them as they work: if steps are skipped, do not accept a part swap.
These are not instructions for opening or handling the equipment yourself. They are the checks that should support a technical conclusion.
Verify Care Dose water hardness settings (HL1-HL3) and test water level control
What they doOn Autodose (Care Dose) models, the engineer checks that the water hardness level (HL1 low, HL2 factory medium, HL3 high) matches the local water supply so detergent is not over-dosed, and if E4 persists with no suds, tests the water level system and fits genuine spares if required.
They must show youthe configured water hardness level (HL1, HL2, or HL3) and a completed test wash and spin with no E4 code.
In writingthe verified water hardness setting, the water level diagnostic result, and any genuine Hoover part fitted.
Flush leftover soap residue with a 60 °C maintenance cycle and check the drain filter
What they doThe engineer cleans the detergent dispenser drawer and siphon cap, checks that the front pump filter is free of residue that could hold water in the tub, and runs an empty Cottons 60 °C maintenance cycle with a proprietary cleaner.
They must show youthe clear drum water during the rinse and drain stages of the maintenance cycle.
In writingerror code E4/E04, cleaning of the dispenser drawer and pump filter, and completion of the 60 °C maintenance wash.
Before accepting a part or repair
Nothing has been shown yet. Do not accept a part swap based on the code alone.
Follow these steps
Note: Follow the documented order. An error code identifies the affected system, but it does not prove by itself which part has failed.
Check the drum for heavy suds and verify detergent type and dose
- Who:
- you.
- How:
- look through the porthole glass to see if there are lots of suds in the drum, check that your detergent is specifically designed for washing machines, and confirm you did not exceed the MAX mark (or put powder into an Autodose/Care Dose liquid compartment).
- Result that matters:
- confirming whether excess soap bubbles from detergent over-dosing triggered the E4/E04 alarm.
- If lots of suds are visible in the drum:
- do not run extra rinses on the soapy load (the manual notes re-rinsing abundant surfactant foam will not help); unload once water is below the door and run an empty maintenance wash.
- If no heavy foam is visible in the drum:
- inspect and clean the detergent drawer and then run the empty 60 °C maintenance cycle.
- Evidence to keep:
- the detergent type and dose used and whether visible foam filled the drum when E4 appeared.
Evidence: Hoover AXI AWMPD 610LH8 washing machine instruction manual (43023645) · Error message E04 - Hoover Advice Centre
Remove and clean the detergent dispenser drawer under running water
- Who:
- you.
- How:
- unplug the washing machine from the mains socket, extract the detergent drawer, wash out all compartments under running water (or fill with hot water, shake, and empty on Autodose models) without using vinegar or acid products, ensure the siphon cap is refitted, and slide the drawer fully back in.
- Result that matters:
- clearing caked detergent and softener residues from the dispenser drawer and siphon.
- If old soap powder or liquid build-up was trapped in the drawer:
- rinse it clean and ensure the drawer closes properly.
- If the drawer is clean:
- proceed directly to running the empty 60 °C cottons maintenance wash.
- Evidence to keep:
- whether detergent residue was clogging the drawer compartments or siphon cap.
Evidence: Manual de instrucciones lavadora Hoover One Touch 31007740 (43016677.A) · Hoover AXI AWMPD 610LH8 washing machine instruction manual (43023645)
Run an empty Cottons 60 °C maintenance wash cycle
- Who:
- you.
- How:
- as instructed on Hoover's official E04 support page and manual, select a Cottons 60 °C cycle with no laundry in the drum (optionally using a proprietary washing machine cleaner) and let the cycle run all the way through to clear out any excess or leftover soap powder.
- Result that matters:
- flushing out residual soap powder and surfactant foam from the drum and internal pipes.
- If the empty 60 °C cottons cycle completes without showing E4/E04:
- use slightly less detergent on future washes (and only 20% of the pack dose when prewashing).
- If error 04 / E4 persists following the empty maintenance wash:
- turn off and unplug the machine for 1 minute, and if it recurs, arrange a visit from a Hoover Service Engineer.
- Evidence to keep:
- whether the empty Cottons 60 °C maintenance cycle finished normally or triggered E4 again.
Evidence: Hoover AXI AWMPD 610LH8 washing machine instruction manual (43023645) · Error message E04 - Hoover Advice Centre
Service engineer inspection of water level and drainage system
- Who:
- authorised Hoover Service Engineer.
- How:
- when E4/04 continues after an empty maintenance cycle, the engineer disconnects the machine from the mains socket, checks the pump filter and drainage path for water retention, and inspects the water level and dosing system.
- Result that matters:
- identifying why the machine still reports excess water or foam after all soap residue has been flushed out.
- If trapped residue or a partial drain restriction was holding water in the tub:
- the engineer clears the circuit and verifies full drainage.
- If an internal water-level or control component is faulty:
- the engineer replaces it using genuine Hoover spare parts.
- Evidence to keep:
- the engineer's written service report confirming the root cause of the persistent E4/04 alarm.
Internal inspection exposes 230 V mains wiring and hot water lines: always unplug the appliance and turn off the tap before an authorised engineer opens the cabinet.
Evidence: Hoover AXI AWMPD 610LH8 washing machine instruction manual (43023645) · Error message E04 - Hoover Advice Centre
Still not solved
If the error persists, stop here. See what the technician must do and show you.
Where this code applies
A code is meaningful only inside the right product and version context.
Primary scope
- System
- Appliances
- Brand
- Hoover
- Product type
- Washing machines
Known code variants
- 4 flashes
- 4 parpadeos
- Aviso E4 de eje de la devanadora
- Bobbin winder shaft E4 warning
- Brother FS60x E4
- cabezal tado E4
- Candy lavadora E04
- Candy lavadora E4
- Candy washer 4 flashes
- Candy washer E4
- Candy washer too much foam E4
- Candy washing machine E04
- E 04
- E 4
- E-04
- E-4
- E04
- E4
- E4 message on the LCD
- Electrolux dishwasher E4
- Electrolux dishwasher error E4
- Electrolux EHFE14T6MSBUS E4
- Electrolux LL14X E4
- Error 04
- Error 4
- Error E4
- error E4 lavavajillas Electrolux
- error E4 tado calibración
- Fallo auto test dispositivo de seguridad
- Hoover E04
- Hoover E4
- Hoover washing machine E04
- Hoover washing machine E4
- lavadora Candy 4 parpadeos
- lavadora Candy mucha espuma E4
- lavadora Hoover E04
- lavadora Hoover E4
- Mensaje E4 en la pantalla LCD
- Safety mechanism self test fault
- Somfy Dexxo Pro E4
- tado Basic seis rayas llave inglesa
- tado Basic six dashes spanner
- tado E4
- tado E4 calibration error
- tado radiator thermostat E4
- tado Smart Radiator Thermostat E4
- tado° E4
What it means
In Hoover washing machine user manuals (such as AXI AWMPD 610LH8 and One Touch 31007740) and on the Hoover UK Advice Centre page for Error 04 / E04, code E4 (also shown as E04, Error 4, or 4 flashes of every LED followed by a 5-second pause on models without a screen) warns that there is too much foam and/or water in the machine. As the manual notes, over-dosing detergent causes excessive foaming, which can make the appliance skip the spin phase, extend cycle time, or trigger the E4 alarm. Seeing E4 on the display does not by itself prove that any sensor or internal component is faulty.
Warnings and stop conditions
- Mediumsource verified
Never use acid products (such as vinegar) or aggressive detergents to clean the dispenser drawer, and never put powder detergent into Autodose (Care Dose) compartments, as this can damage internal seals and the dosing system.
Evidence: Hoover AXI AWMPD 610LH8 washing machine instruction manual (43023645)
- Highsource verified
Before opening the porthole door or cleaning the filter after an E4 alarm, make sure the water level is below the door opening and unplug the washing machine from the electrical socket.
Evidence: Hoover AXI AWMPD 610LH8 washing machine instruction manual (43023645)
Symptoms and causes
Probable causes · in order
- Too much soap powder or detergent not designed for washing machinesCommon
Hoover's troubleshooting table for E4 and the official E04 guide state that using an excessive amount of detergent or a product not formulated for automatic washing machines creates excess soap bubbles that trigger the alarm.
Evidence: Hoover AXI AWMPD 610LH8 washing machine instruction manual (43023645) · Error message E04 - Hoover Advice Centre
- Abundant foam from anionic surfactants or detergent-retaining fabricsPossible
The manual explains that anionic surfactants in certain detergents, or heavily dosed loads such as towels whose fibres hold detergent, produce abundant foam that is hard to eliminate from laundry.
Evidence: Manual de instrucciones lavadora Hoover One Touch 31007740 (43016677.A) · Hoover AXI AWMPD 610LH8 washing machine instruction manual (43023645)
- Built-up detergent residue in the soap drawer or drumPossible
Leftover soap powder or additive build-up inside the dispenser drawer compartments or drum dissolves during the wash and creates excess suds even on a normal cycle.
Evidence: Hoover AXI AWMPD 610LH8 washing machine instruction manual (43023645) · Error message E04 - Hoover Advice Centre
- Persistent water or foam fault after an empty maintenance cycleLess common
Hoover's E04 advice page notes that if error 04 persists after running an empty 60 °C cottons maintenance wash to clear leftover soap powder, a Service Engineer visit is required.
Evidence: Hoover AXI AWMPD 610LH8 washing machine instruction manual (43023645) · Error message E04 - Hoover Advice Centre
Virtual technician
Does E4 still appear after these checks?
Answer a few questions to narrow down the likely cause and the safest next action. Guidance only - it never replaces a professional.
Sources and technical references
- 1
Manual de instrucciones lavadora Hoover One Touch 31007740 (43016677.A)
Hoover (Candy Hoover Group) · 2018 · manual
- 2
Hoover AXI AWMPD 610LH8 washing machine instruction manual (43023645)
Hoover (Candy Hoover Group) · 2018 · manual
- 3
Error message E04 - Hoover Advice Centre
Hoover UK · 2024 · official_doc
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