Microswitch D45R - D45X with production number 66094 is a critical component of the electronic system in Nivona series 8 coffee machines. This original part ensures detection and control of key coffee machine functions, and its failure will result in complete appliance malfunction. If your Nivona series 8 coffee machine does not respond to power-on, does not start the brewing cycle, or behaves unpredictably, this microswitch is often the cause of the problem.
When does this part need replacing? (Failure symptoms)
This part typically fails when you see any of these symptoms:
- Coffee machine will not power on at all, display does not respond even after pressing the main power button
- Coffee machine shuts down randomly in the middle of a brewing cycle or restarts without apparent reason
- Machine does not start coffee preparation even after selecting a drink, motor does not turn, brew unit remains idle
- Display is lit but the appliance does not respond to any buttons or commands from the control panel
Compatibility: Which models is this part for?
This microswitch is designed for Nivona series 8 (CafeRomatica) coffee machines. According to the manufacturer's technical documentation and service manuals, it is compatible with the following models:
Nivona CafeRomatica 8XX Series
- NICR 820
- NICR 825
- NICR 830
- NICR 831
- NICR 838
- NICR 839
- NICR 840 Marrone
- NICR 841
- NICR 842
- NICR 845
- NICR 848
- NICR 850
- NICR 855
- NICR 858
- NICR 859
- NICR 877
Important: The microswitch is located on the rear of the appliance in a small plastic housing. When replacing, ensure correct contact orientation and secure fastening in the holder. Electrical parameters: 16 A, 250 V. Type: D45R, designated in some manuals as: D45X.
Original vs. compatible part
This microswitch is an original Nivona replacement part with production number 66094. It guarantees precise compatibility with the construction of series 8 coffee machines and meets the manufacturer's electrical parameters (16 A, 250 V). Using the original part eliminates the risk of incorrect contact, short circuits, or damage to the coffee machine's control electronics. Brewive supplies this part with technical support in case diagnostics or installation assistance is needed.
Delivery
We have this part in stock, dispatch takes place within 24 hours from the European Union. Our service technicians are available for technical questions or replacement assistance.
Frequently Asked Questions
Which Nivona coffee machine models is this microswitch suitable for?
This microswitch D45R - D45X with part number 66094 is designed for Nivona series 8 (CafeRomatica) coffee machines. It is compatible with models NICR 820, 825, 830, 831, 838, 839, 840, 841, 842, 845, 848, 850, 855, 858, 859, and 877.
Where in the coffee machine is this microswitch located and how do I replace it?
The microswitch is positioned on the rear of the coffee machine in a small plastic housing. For replacement, you need to switch off the appliance, disconnect from mains power, open the rear cover, and release the holder clips. Ensure correct connection of faston connectors (4.8 mm) according to the original orientation.
Is this part an original or a compatible replacement part?
This microswitch is an original Nivona replacement part with production number 66094. Electrical parameters are 16 A, 250 V. It guarantees full compatibility with the construction of series 8 coffee machines and meets the manufacturer's technical requirements.
| Manufacturing company | NIVONA Apparate GmbH |
|---|---|
| Address | Südwestpark 49, 90449 Nürnberg, Deutschland |
| info@nivona.com |










