6 Maintenance and Service
14
Overview of error messages after the check program:
Error message
Solution
1. “NO ERRORS FOUND”
No errors were found.
2. “VACUUM PUMP DEFECTIVE”
Contact your service partner (see p. 15).
3. “VACUUM SYSTEM LEAKY”
Clean the lift seat and sealing ring while
observing safety instructions. Then rerun
the check program.
4. “SOLENOID VALVE LEAKY”
Contact your service partner (see p. 15)
5. “CHANGE HEATING ELEMENT”
Contact your service partner (see p. 15)
The error message "CHANGE HEATING ELEMENT" can also arise when the
heating element is technically functional. However, the check program requires a
nominal power supply to operate. When the effective power supply is below the
nominal value, the error diagnosis of the heating element can be incorrect. This
problem generally only occurs in Asian countries. Consult your local power
company.
6.4 CHANGING THE BATTERY
The firing programs and the software of the
AUSTROMAT D4
are saved in
electronic memory modules that require an uninterrupted power supply to maintain
their memory function. When the furnace is turned off, this in ensured by a battery
(lithium cell 3.6 V / 2000 mAh, non-chargeable) that lasts approximately three years.
After a maximum of three years, the battery should be replaced for the memory
modules to work properly and to avoid loss of your firing programs. When turned on,
the furnace indicates the battery charge (Figure 7): 100% means the battery is new,
and approximately 10% means that the battery is an average of 2½ years old. Note
that this value is reached much earlier when the furnace is always turned off. At a
charge of 10%, the screen automatically displays a message that they battery must
be changed. Observe the following procedure:
•
Order a new battery module (original replacement part, order No. LNE18082)
•
Turn the furnace on, and leave it on while the battery is being changed.
•
Open the battery compartment on the back of the furnace (two Phillips head
screws; see Figure 2).
•
Carefully pull off the battery compartment cover with the battery and twisted
cable up to the cable plug. Unplug the cable.
•
Insert the new unit comprising the battery compartment cover, battery and plug
(lithium cell / 3.6 V / 2000 mAh). The plug is protected against polarity reversal.
•
Screw closed the battery compartment cover.
•
Instruct the software that a new battery has been installed by selecting
“Change battery” in the
Setup
menu, and confirming that the battery has been
changed (Section 7.6.2).
DEKEMA Dental-Keramiköfen GmbH, AUSTROMAT
®
D4, Version 3, 2006
