Coffee Makers & Espresso Machines - Recent Questions, Troubleshooting & Support

OA means that the sensor is not detecting any heat in the boiler. That means either the boiler is not heating or the sensor or sensor wire is detached from the boiler or the sensor has failed. The sensor is located behind the front display panel stuck in the front of the boiler and it has 2 thin wires in it with push on terminals.

Krups Coffee... | Answered 17 hours ago

The thermal fuse in the Gaggia Classic is likely tripped and it is not re-settable. The fuse has the following stamped on it: MICROTEMPSKMAHDG4A00184C I believe that is what is the culprit for all of us when the "power doesn't come on." Now, what is the rating of this fuse and where to get a replacement? The fuse is the small resistor-like, diode-like part in a clear tube mounted against the boiler, and it must be physically cut out of the line to replace it!

Gaggia Classic... | Answered 2 days ago

The machine has started the "decalcification" process.
When the three lights are flashing just press the three buttons at the same time (with three fingers) and relase when you hear a beep. After that your all good.
This happens when you press the three buttons at the same time when cleaning for example.
Hope it helps!

Williams-Sonoma... | Answered 2 days ago

then i would try to clean the inlet water line from reservoir to the brewer unit

Coffee Makers &... | Answered 2 days ago

When I had this error, I tracked it down to the thinner of the two data cables (grey with black plug) that plugs into the main board at the front near the steam tap. The plug had come loose and pushing it in fixed the Temper. Error at start-up. It's worth trying this first.

Saeco Coffee... | Answered 2 days ago

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