Espresso machine not heating up?

A failed boiler heating element or severe internal scale buildup prevents the water from reaching brew or steam temperature.

Likely causes · most likely first

Single Boiler

Hard DIY Part: $60–$150
Brew Thermostat

Moderate DIY Part: $8–$20

A faulty brew thermostat fails to close the heating circuit, so the boiler element never receives power to heat.
3-Position Power Switch

Moderate DIY Part: $10–$25

A defective power switch may appear on but fail to deliver voltage to the boiler heating circuit.
Steam Thermostat

Moderate DIY Part: $10–$25

A failed steam thermostat can cause a thermal cutout condition that disables the heating element as an overheat-protection measure.
Copper Connecting Pipe

Hard DIY Part: $10–$40

A burst copper pipe inside the machine bypasses the boiler and routes cold water directly to the group head without heating.

See the faulty part in 3D.

Tap a highlighted part to see exactly why it fails, how to verify it's the problem, and how to replace it.