Error: Controller Board "Forgets" The Stored Programs; Error: Controller Board "Forgets" The Time; Error: No Display Reading, Yellow Pilot Light Of On/Off Switch Is On; Diode Flashes Briefly - Dentsply Sirona inFire HTC speed Service Manual

Dentsply Sirona
Service Manual inFire HTC speed
61 30 608 D3497
D3497.076.01.09.02 10.2018
8.2.4

Error: Controller board "forgets" the stored programs

Cause
Controller board defective.
Elimination
Replace controller board (see "Replacing the controller board [ → 30]").
Call customer service.
8.2.5

Error: Controller board "forgets" the time

Cause
Controller board defective.
Elimination
Replace controller board (see "Replacing the controller board [ → 30]").
Call customer service.
8.2.6 Error: No display reading, yellow pilot light of ON/OFF
switch is on, diode flashes briefly
Description of the error
● No display.
● Yellow pilot light of ON/OFF switch is on.
● Diode flashes briefly when unit is switched on.
Cause
Controller board defective.
Elimination
Replace controller board (see "Replacing the controller board [ → 30]").
Call customer service.
8 Troubleshooting
8.2 Error without message on the display
25