61 30 608 D3497
D3497
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076.01.09
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02 10.2018
33
Dentsply Sirona
9 Replacing parts
Service Manual inFire HTC speed
9.5 Replacing fuses F3/F4
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9.5
Replacing fuses F3/F4
Fuse F3 for 250 VAC: T200mA,
Order No.: 61 32 463 (10 pcs.)
Fuse F4 for 250 VAC: T2.5A,
Order No.: 61 32 471 (10 pcs.)
➢ Unscrew the defective fuses F3/F4 from the control board for
emergency cooling and replace them with new ones.
9.6
Replacing the thermocouple
1. Cut and remove the cable ties.
2. Detach the red (+) and white (-) cables from the thermocouple.
3. Unscrew and remove the thermocouple and replace it with a new
one.
4. Screw the red and white leads tight again and secure them with cable
ties.
9.7
Replacing the fan
1. Loosen the cover (A) of the cable duct.
2. Pull the connector of the fan lead (B) off of the control board for
emergency cooling.
3. Replace the fan (C).
4. Reattach the plug of the fan cable (B) and the cover (A).
F4
F3
A
B
C