F3 -- Steam Ntc (1R30) Short-Circuited; F4 -- Steam Ntc (1R30) Open-Circuited - Miele CVA 4062 Technical Information

Technical Information
Note:
The approximate resistance values of this NTC are
100kΩ at 77°F (25°C),
5.5kΩ at 212°F (100°C), and
1kΩ at 320°F (160°C).
4. Check the resistance of the temperature sensor at different temperatures and
compare to the above values.
5. Replace the temperature sensor, if necessary.
3.3

F3 -- Steam NTC (1R30) Short-Circuited

Cause:
Steam NTC (1R30) short-circuited.
Remedy:
1. Check the connection leads.
2. Replace the connection leads, if necessary.
3. Check the temperature sensor via service mode.
Note:
The approximate resistance values of this NTC are
100kΩ at 77°F (25°C),
5.5kΩ at 212°F (100°C), and
1kΩ at 320°F (160°C).
4. Check the resistance of the temperature sensor at different temperatures and
compare to the above values.
5. Replace the temperature sensor, if necessary.
3.4

F4 -- Steam NTC (1R30) Open-Circuited

Cause:
Steam NTC (1R30) open-circuited.
Remedy:
1. Check the connection leads.
2. Replace the connection leads, if necessary.
3. Check the temperature sensor via service mode.
Note:
The approximate resistance values of this NTC are
100kΩ at 77°F (25°C),
5.5kΩ at 212°F (100°C), and
1kΩ at 320°F (160°C).
4. Check the resistance of the temperature sensor at different temperatures and
compare to the above values.
5. Replace the temperature sensor, if necessary.
CVA 4062/CVA 4066/CVA 4068 Coffee Systems
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