What is a thermoblock pin
The thermoblock pin is a small mechanical part used to secure or fasten the thermoblock or related components of the heating system in a coffee machine. It ensures a precise and stable connection of parts that heat up during operation and are exposed to the pressure of flowing water.
When the part stops doing its job
If the pin is worn, cracked or loose, the thermoblock may lose stability, resulting in leaks, water escaping, unusual noise during heating, or fluctuating coffee temperature. In some cases, the coffee machine may report an error related to heating or water flow.
Why you shouldn't put off the replacement
A damaged pin can cause the thermoblock to shift or leak during operation, leading to bigger problems including damage to surrounding parts or water leaking into the coffee machine. Timely replacement prevents unnecessary follow-up repairs and keeps the heating system running steadily.
How to choose the right part
When choosing a thermoblock pin, it's important to check compatibility with your specific coffee machine model in the product's compatibility table, as the shape and mounting differ between models.
Compatible with
- ESAM6850.M PrimaDonna Exclusive
- ESAM6900.M PrimaDonna Exclusive
- ESAM428.40.BS Perfecta Evo
- ESAM428.80.SB Perfecta Evo
- ESAM03.126.S Magnifica
- ESAM420.40.B Perfecta Evo
- ESAM420.80.TB Perfecta Evo
- ESAM460.80.MB Perfecta Deluxe
- FEB427.40.BS Perfecta Evo
- FEB427.80.SB Perfecta Evo
- ESAM460.75.MB Perfecta Deluxe
| Manufacturing company | De’Longhi Appliances S.r.l. |
|---|---|
| Address | Via L. Galvani, 22, 31100 Treviso TV, Italy |


