Washer Low Severity
F5 Appliance Error Code

Asko Washer F5 Error: Excessive foam detected

Asko washer F5 error is a common issue reported by Asko appliance owners. What Asko Error Code F5 Means Error code F5 on Asko washing machines means the machine has detected too much foam in the drum. Asko front-loaders monitor suds levels via the water pressure switch; when foam rises above the safe threshold the […]

By Denys Mitchell Lead Appliance Repair Specialist & Technical Writer

No

DIY Fixable

From $180

Typical Repair Cost

60-90 min

Pro Repair Time

Quick Assessment

Answer to continue safely

Is it safe to keep using?

Yes. F5 is a non-damaging fault caused by excess detergent. The machine manages it automatically. Reduce detergent dose on future washes to prevent recurrence.

Can I reset the code?

Yes. Allow the anti-foam sequence to finish, then the machine will reset itself. If it halts completely, a mains power reset of 60 seconds followed by a rinse-only cycle will clear the code.

When to stop immediately?

Stop if you notice: Foam is leaking from the door seal or dispenser drawer onto the floor., F5 recurs on every cycle even with minimum detergent dose — pressure switch may need inspection..

Symptoms You May Notice

Foam visible through door glass reaching the top of drum

Thick suds are clearly visible through the door porthole, often filling the drum completely and sometimes pressing against the door glass.

Machine pauses mid-cycle and adds extra water

The programme stops unexpectedly, the machine adds a quantity of clean water, drains, and then attempts to continue — this is the anti-foam rinse cycle.

Cycle duration significantly longer than normal

A 40-minute quick wash takes 80+ minutes as the machine performs additional anti-foam rinses before it can proceed to the spin phase.

Detergent or foam residue on clothes after cycle

Excessive suds prevent proper rinsing, leaving a soapy residue or slippery feel on fabrics after the cycle completes.

Possible Causes

1

Too much detergent or wrong detergent type

Using more detergent than recommended, or using non-HE (high-efficiency) detergent in an Asko front-loader, generates far more suds than the machine can handle.

DIY Possible
2

Detergent residue build-up in dispenser drawer

Old detergent caked in the dispenser drawer dissolves during the wash, adding an uncontrolled extra dose of soap to the cycle.

DIY Possible
3

Fabric softener overuse or wrong product

Some fabric conditioners and non-HE softeners generate additional foam when mixed with wash water at high temperatures.

DIY Possible

Safe Checks You Can Do

These checks are safe for homeowners. No disassembly required. Do not remove panels or access internal components.
  1. 1

    Allow the anti-foam cycle to complete

    Do not interrupt the machine while it is performing its anti-foam rinse sequence. Wait for the cycle to finish naturally. The machine may take significantly longer than usual but will usually resolve the foam level on its own.

    If the door unlocks at the end of an extended cycle with F5 shown, run an empty rinse-only cycle immediately to flush excess detergent from the drum and pump.

  2. 2

    Clean the detergent dispenser drawer

    Remove the dispenser drawer completely (press the release tab inside the drawer and pull out). Soak in warm water and scrub all compartments with a small brush to remove caked detergent and mould. Rinse and refit.

    A dirty dispenser drawer can add as much as an extra full dose of detergent to every cycle. Clean it monthly.

  3. 3

    Reduce detergent dose and switch to HE product

    For the next wash, use no more than the minimum dose marked on the detergent packaging, and ensure the product is labelled HE (High Efficiency) or suitable for front-loaders. In soft-water areas halve the recommended dose.

    Asko recommends liquid HE detergent for best results in their front-loaders. Powder detergents are more prone to over-foaming if the drum is cold.

When to Call a Professional

Contact a qualified technician if:

  • F5 recurs consistently with correctly dosed HE detergent — the foam pressure switch may have failed.
  • Foam sensor or pressure switch replacement requires internal access — service call from $95.
  • Persistent F5 combined with E4 suggests foam is blocking the drain pump filter, requiring a thorough clean.

Need Professional Help?

Find qualified technicians in your area for proper diagnostics and repair.

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