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ASKO Coffee Machine control panel showing error code E01

Error Code

ASKO Coffee Machine E01 Error Code

E01 on an ASKO coffee machine commonly relates to a heating, flow or limescale-related problem.

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Reviewed by Daniel Reeves · Last reviewed August 20, 2026

Error guide

Code overview

Quick answer — E01 on an ASKO coffee machine commonly relates to a heating, flow or limescale-related problem.

On many ASKO coffee machine models, the E01 code is commonly associated with a possible heating, flow or limescale-related problem. The exact meaning can differ between appliance series and model years, so treat this as general guidance and confirm it against your specific model’s documentation before acting.

Model note: ASKO reuses codes across series and model years, so E01 may mean something different on another appliance or generation. Confirm against your model’s documentation and record the full model number before acting.

  • Error code: E01
  • Appliance: Coffee Machine
Coffee Machine error-code reference

What to look for

Symptoms you may notice

These are the signs homeowners often see when E01 appears on an ASKO appliance.

  • The coffee machine shows E01 and drinks come out weak or cool
  • Flow seems restricted when E01 appears
  • The coffee machine pauses with E01 displayed

Why it happens

Possible causes

Exact meaning can vary by model — treat these as common associations, not a final diagnosis.

  1. Limescale affecting heating or flow

  2. A flow or pump restriction

  3. A heater or sensor issue

Before you call

Safe checks you can make

Simple, non-hazardous checks only. If anything is unclear, stop and contact a technician.

  1. Run a descale cycle if the machine indicates one is due

  2. Confirm the water tank is filled and correctly seated

  3. Perform a manufacturer-approved restart

  4. Record the full model number before contacting a technician

Safety first

Important safety warning

Coffee machines combine water, heat and electricity. Beyond descaling and basic checks, internal heating diagnostics should be handled by a technician.

Please avoid

What not to attempt

01 Do not open internal panels or access high-voltage components
02 Do not bypass door locks, safety switches or interlocks
03 Do not keep running the appliance if there is water near electrical parts, a burning smell or sparks

Get help

When to call a technician

If E01 persists after descaling and basic checks, book a diagnosis to evaluate the heater, flow path and sensor.

Keep browsing

Related error codes

01 E02 Coffee Machine 02 E03 Coffee Machine 03 E04 Coffee Machine 04 E05 Coffee Machine 05 E06 Coffee Machine 06 E07 Coffee Machine

References

Sources & references

  • ASKO appliance user manual — error/display messages section

FAQ

Frequently asked questions

Quick answers about E01, safe checks, and when to book a technician.

02 answers

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Tell us about your ASKO we’ll take it from there

Share your model and that you are seeing E01 — we’ll confirm an appointment. Prefer to talk? Call us and we’ll help right away.

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