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8.3
Technical malfunctions
These malfunctions may occur without an error message being displayed:
Error
Vacuum is not or only slowly released
Indication on display incomplete
Display not illuminated
Signal transmitter does not sound.
Furnace head does not open
Vacuum pump does not start working
Final vacuum is not reached
Incorrect of illogical temperature
indication
Cracks in the insulation
Cracks in the quartz glass / heating
element
Firing result does not meet the
expectations
The furnace does not send any
messages to the Programat App
(e.g. at the end of the program)
*If there are any questions, please contact the Ivoclar Vivadent After Sales Service.
Double-Check
Is the vacuum released within approx.
30 seconds?
Activate the display test program. *
Is the furnace properly connected according to
the Operating Instructions and switched on?
Is the signal transmitter switched off
(Volume = 0)?
Was the furnace head opened manually?
Has the vacuum already been released?
Is the vacuum pump fuse defective?
Was the maximum power consumption
exceeded?
Is the vacuum pump correctly connected?
Is the vacuum hose OK?
Is the pump output OK?
Humidity/condensation in the vacuum hose?
Is the thermocouple bent or fractured?
Is the thermocouple correctly connected?
Is the thermocouple plug defective?
Are the cracks small and insignificant (hairline
cracks)?
Are the cracks large or have parts of the
insulation broken off?
Are there cracks in the quartz glass or is the
quartz glass sheathing of the heating wire
broken?
Are the firing parameters correct?
Has a suitable firing tray been used?
Was the furnace calibrated?
Is the thermocouple bent or damaged?
Is the furnace connected to the Internet?
Action
Wait until the vacuum has been released and
remove object. Switch the furnace on and off
again. *
*
Correctly connect the furnace and switch it on.
Adjust volume.
Open the furnace head only by using the
corresponding keys. Switch furnace off and on
again.
Is the program still running?
Wait until the program is completed.
Switch the furnace on and off again. *
Check fuse and replace if necessary.
Use only the vacuum pump recommended by
Ivoclar Vivadent.
Correctly connect the vacuum pump to the
furnace base.
Check vacuum hose and hose connection
(from the furnace to the pump and from the
furnace head to the furnace base).
Start the vacuum test program.
Start dehumidification program.
Contact your local Ivoclar Vivadent After Sales
Service Centre.
Correctly connect thermocouple.
*
Small cracks in the muffle do not negatively
affect the performance of the furnace.
*
Switch off the furnace. *
Set the firing parameters in accordance with the
instructions by the material manufacturer
Use the original Programat firing tray or the
special firing tray recommended for the
respective material.
Conduct a furnace calibration.
*
Connect the furnace to an network with an
Internet access via Ethernet or WLAN.
8. What If ...
83
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