Thermoblock gasket for DeLonghi EC coffee machines

What is a heating element seal

The heating element or thermoblock seal closes the joint between the body that heats the water and the surrounding pipes or inlets. It prevents hot water and steam from escaping the intended flow path and maintains the necessary pressure in the system.

Typical signs of wear

An old or hardened seal loses its elasticity and stops sealing properly. This shows up as dripping or leaking water around the heating element, hissing steam outside the nozzle, longer heating times, fluctuating pressure, or error messages related to water temperature or pressure. Sometimes you can see moisture or limescale directly at the joint.

Why replace this part in time

A leaking joint at the heating element means loss of both pressure and heat, which affects the taste and temperature of the coffee. Long-term water leakage can damage electrical components near the element, so it's worth replacing the seal as soon as the first signs appear.

How to choose the right seal

Seals differ in shape and size depending on the specific heating element or thermoblock, so be sure to check compatibility in the product table before purchasing.

Compatible with

• EC250.B
• EC250
• EC700
• EC730
• EC650
• EC750 E:XC
• EC270
• EC300M