Technical Information
80
CVA 4062/CVA 4066/CVA 4068 Coffee Systems
Note:
The approximate resistance values of this NTC are
100k at 77°F (25°C),
5.5k at 212°F (100°C), and
1k 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
100k at 77°F (25°C),
5.5k at 212°F (100°C), and
1k 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
100k at 77°F (25°C),
5.5k at 212°F (100°C), and
1k 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.