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Error Code

Thermador Coffee Machine E14 Error Code

E14 on a Thermador coffee machine is generally linked to a possible internal control or communication problem. This guide gives a plain-language overview, the symptoms you might notice, safe checks you can perform, and when it is best to call a technician — with a reminder that exact behavior varies by model.

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Reviewed by Marcus Cole · Last reviewed August 1, 2026

Error guide

Code overview

Marcus Cole Written by Marcus Cole Appliance Repair Content Specialist Published August 1, 2026 Updated August 12, 2026 Technically reviewed August 1, 2026

Content status: Verified

Error code E14
Appliance Coffee Machine
Coffee Machine service reference
Quick answer

E14 — commonly associated with a control/communication issue on a Thermador coffee machine. Meaning can vary by model; verify before relying on it.

Model compatibility: Thermador reuses codes across series and model years, so E14 may mean something different on another appliance or generation. Confirm this against your model’s documentation and record your full model number before acting.

Plain language

What this code means

On many Thermador coffee machine models, the E14 code is commonly associated with a possible internal control or communication 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.

Signs

Symptoms you may notice

The coffee machine displays E14 and controls respond oddly

E14 appears at start-up or mid-cycle

Buttons or programs behave inconsistently with E14

Why it happens

Possible causes

An internal control or wiring fault

A communication issue between components

A transient electronics glitch

Before you call

Safe checks you can make

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

Confirm stable power at the outlet

Perform a manufacturer-approved restart once

Record the full model number for the technician

Record the full model number before contacting a technician

Important safety warning. Do not open internal panels, access high-voltage wiring, or bypass any safety device. If you see smoke, sparks, a burning smell, or water near electrical parts, switch the appliance off at the outlet if it is safe to do so and call a professional.

Please avoid

What not to attempt

  • Do not open internal panels or access high-voltage components
  • Do not bypass door locks, safety switches or interlocks
  • 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 E14 persists after the safe checks above, or you are unsure at any point, book a diagnosis. A technician can confirm what E14 means on your specific model and resolve the underlying cause safely.

Likely related component: Often related to the control electronics (varies by model).

FAQ

Frequently asked questions

References

Sources & references

  • Thermador appliance user manual — error/display messages section
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