Thermador Coffee Maker Error 12-00
⚡ Quick Answer: The Thermador Coffee Maker error 12-00 indicates a power failure or that the appliance was turned off at the power switch. This error often appears on... ✅ DIY Fixable
What Does Error 12-00 Mean?
The Thermador Coffee Maker error 12-00 indicates a power failure or that the appliance was turned off at the power switch. This error often appears on the display as '12:00' after a power interruption, prompting the user to re-enter clock and menu settings. If you hear unusual grinding noises and the machine fails to brew coffee, it may also signal a malfunction in the brew group.
Common Symptoms:
- Display shows a time string like "12:00" after power loss or reset
- Appliance prompts re‑entry of settings instead of normal operation
Possible Causes
- Power interruption or appliance turned off at main power switch (high)
How to Fix Error 12-00
DIY Fix Re‑enter settings and ensure stable power
- Check that the coffee maker is switched on at the mains power switch.
- Re‑enter the time and any menu settings as prompted on the display.
- Avoid turning off the appliance at the power switch during normal operation or adjustments.
Technician Only Verify power integrity and internal memory retention
- Inspect the mains power connection and ensure there is no loose wiring.
- Check for any issues with internal power supply components that may cause resets (e.g., backup memory capacitor).
- Test clock/microcontroller memory retention under varying power conditions.
Parts needed: Internal power supply board, Backup capacitor or memory retention components
- The error persists after restoring stable power and re‑entering settings.
- Machine repeatedly resets its clock or user settings without apparent power loss.
Next step
Choose the next step for 12-00
Confirm the diagnosis before ordering. An error code can identify the system involved, but it does not prove that a specific part has failed.
Most relevant component to inspect
Power Control Board
Distributes and switches electrical power for the appliance's major loads.
- Typical part-only price
- $90 - $260
- DIY difficulty
- Hard
- Estimated time
- 30-75 mins
Where can I find the model number?
Check the rating label around the door, lid, frame, rear panel, or inside the appliance cabinet. Use the complete model number, including suffixes.
Verify the complete model and part number on the retailer's compatibility page before ordering.
Other parts options
Check related components first; use model search as a fallback.
Capacitor
Stores electrical energy to assist in starting or running the motor efficiently.
Model-compatible Coffee Maker parts
Enter the complete model number to browse compatible replacement parts. This is a model-based parts search, not a diagnosis that a specific component failed.
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Technical Specifications
| wattage | 1500W |
|---|---|
| component | Brew Group Assembly |
| resistance | N/A |
| part_number | Thermador 900019123 |
| voltage_rating | 120V AC |
Common Questions
What does 12-00 error mean on Thermador Coffee Maker?
The 12-00 error indicates a power failure or that the machine was switched off, prompting the user to reset clock/menu values.
Can I fix Thermador Coffee Maker 12-00 error myself?
Yes, you can fix it by ensuring stable power, turning the machine on, and re-entering the time and menu settings.
How much does it cost to fix 12-00 error?
Repair costs can vary, ranging from diagnostic fees to minor part replacements.
When should I call a technician for 12-00?
Call a technician if the error persists after restoring power and re-entering settings, or if the machine frequently resets without power loss.
Sources & References
Data last verified: 2026-07-22
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