What If; Error Messages - Ivoclar Vivadent 747827AA Operating Instructions Manual

8. What If ...

This chapter will help you to recognize malfunctions and take appropriate measures or, if possible and acceptable, to perform
some simple repairs.

8.1 Error messages

The furnace continuously checks all functions during operation. If an error is detected, the respective error message is
displayed.
The acoustic signal and the error message can be acknowledged with the corresponding buttons.
The following error messages may be displayed. If there are any questions, please contact the Ivoclar Vivadent After Sales
Service.
Error / Work can
Hint continue
Nr. after the
error
2
8
9
10
11
13
*,**
14
*
16
17
18
19 yes
20 no
**
23
24
26
27 no
**,***
70
Error
T < B
L > T
V2x <= V1x
V2x > Tx + 1°C
Incorrect values for V1x, V2x
Current temperature after start
> Tx + 80°C
Temperature in the firing
chamber > 410 °C at the start of
the calibration program, i.e. too
high.
T2 < T1
Power failure > 10 s during a
firing program in progress
T1 > V12
V2 < B
Error in the heating system
Heating muffle very old
Heating muffle defective
Temperature > B + 160°C at start
of a firing program
Furnace head cannot be initialized The furnace head cannot be brought to the end position. It might be
Error Message Text
Enter an acceptable value for T.
Enter an acceptable value for long-term cooling L.
Enter an acceptable value for the vacuum-on temperature V1x or the
vacuum-off temperature V2x.
Change either the vacuum values or the holding temperature T.
Enter plausible values for V1x, V2x.
Caution: Excess temperature! Program aborted; furnace head opens to cool
down the furnace.
Temperature too high for calibration. Furnace is cooling down! Try
restarting the program later.
Enter a lower value for T1 or a higher value for T2.
A program in progress was interrupted for more than 10 s. The program
cannot be continued.
Enter a lower value for T1 or a higher value for V12.
Prevacuum activated! V2 must be higher than B.
Check the heater fuse. If the fuse is O.K., contact your local Ivoclar
Vivadent Service Centre.
The heating muffle is very old. It is recommended replacing it by a new
one. After this error message has been confirmed, a program may still be
started.
The heating muffle is in such poor condition that it has to be replaced
immediately.
Firing chamber is too hot for the start of a firing program.
blocked by external mechanical influences! If this is not the case, contact
your local Ivoclar Vivadent Service Centre.