Function; Machine Response After Power Supply Interruption; Software Ids; Fault Repair - Miele CVA 4062 Technical Information

CVA 4062/CVA 4066/CVA 4068 Coffee Systems
2

Function

2.1

Machine Response after Power Supply Interruption

After a power failure, the machine remains switched off (standby). The fault memory
and all modifications made by the operator are saved.
2.2

Software IDs

Production Index
00
10
70

Table 070-1: Software IDs

3

Fault Repair

3.1

F1 -- Coffee/Hot Water NTC (2R30) Short-Circuited

Cause:
Coffee/hot water NTC (2R30) 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.
3.2

F2 -- Coffee/Hot Water NTC (2R30) Open-Circuited

Cause:
Coffee/hot water NTC (2R30) open-circuited.
Remedy:
1. Check the connection leads.
2. Replace the connection leads, if necessary.
3. Check the temperature sensor via service mode.
Pre-production models
Software release 1
(corresponds to machine no.
10/81481410 (12/2/2008)
Software release 2
(corresponds to machine no.
70/81503135 (5/28/2009))
79
Technical Information
ID No. Software Version
EPL: 1815 (V1) CVA 4062: 07447350
EPX: 1814 (V7) CVA 4066: 07447390
EPL: 1913 (V1) CVA 4062: 07559550
EPX: 1912 (V1) CVA 4066: 07559590