61 30 459 D 3497
26
D 3497
.
201.01.04
.
02 06.2009
9 Malfunctions
Sirona Dental Systems GmbH
Miscellaneous errors and their causes
Operating Instructions inFire HTC
9.2
Miscellaneous errors and their causes
Error
Cause
Elimination
Wrong time displayed
Wrong time in the controller
Correct time settings (see function
key "F" [
22])
Furnace does not heat up although
autostart program is running
Power was out for a long time during
the autostart program
Check the power connection. Make
sure power connection is not
switched with a timer.
Controller LED indicates heating, but the
furnace does not heat
Heating defective
Call customer service.
Furnace "forgets" the stored programs
Defective controller
Call customer service.
Furnace "forgets" the time
Defective controller
Call customer service.
No display. Yellow light of ON/OFF
switch is on. The LEDs flash briefly after
the unit is switched on.
Controller display is defective.
Call customer service.
No display. Yellow pilot lamp of ON/OFF
switch is on. The LEDs do not flash
briefly after the unit is switched on.
Protection fuse of the furnace is
defective.
Switch the furnace off, wait for 30
seconds and then switch it back on. If
this produces no results: Replace
fuses F1 and F2. [
27]. Call
customer service.
No display. Yellow pilot lamp of ON/OFF
switch is off.
No line voltage
Check the fuses in the fuse box,
check electrical connection. Call
customer service.
Furnace triggers circuit breaker.
Unsuitable circuit breaker
Check the circuit breakers as
specified.
Call customer service.
Furnace triggers the circuit breaker in the
fuse box.
FI is too sensitive or heating is
defective
Check whether FI is ≥ 30 mA. Call
customer service if necessary.
Summary of Contents for inFire HTC
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