What Causes Not Heating?

Tassimo machines use barcode-scanned capsules for precise brewing parameters.

• Maintenance neglect: Irregular descaling and cleaning are the top causes.
• Component wear: Seals, gaskets, and pumps degrade with use.
• Water quality: Hard water causes scale that blocks sensors and heating elements.
• Model-specific issues: Tassimo not heating has known patterns in Tassimo T12, Tassimo T20, Tassimo T55.

Step-by-Step Fix

Follow these steps specifically for Tassimo machines:

1. Descale the Tassimo boiler using an approved descalant. Limescale is the #1 cause of heating failures.
2. Test the NTC temperature sensor with a multimeter. On Tassimo machines, a faulty sensor shows infinite resistance.
3. Inspect the heating element for calcium deposits. If resistance is out of spec, replace the element.
4. After descaling, run 3 empty brew cycles to purge air from the heating chamber.

Tassimo Pro Tip

Expert advice: If the machine reads the barcode incorrectly, clean the scanner window with a dry cloth.

Model-Specific Notes

These steps apply to: Tassimo T12, Tassimo T20, Tassimo T55, Tassimo T65, Tassimo My Way. For exact part numbers, consult the Tassimo parts catalog at Tassimo Support.

Preventive Maintenance

Run the Tassimo descaling program every 2-3 months.

• Use filtered water to reduce scale buildup
• Clean the brew group weekly
• Replace water filters as recommended
• Run cleaning cycles for milk systems monthly

Popular Tassimo Models

When to Call a Professional

If these steps don't resolve the issue, contact an authorized Tassimo service center. Complex electrical or hydraulic problems require professional diagnosis.