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15.Switch the heating system on again.
✎ See the chapter entitled “6 Using the heating system”, section
“6.2 Switching on the heating system”.
✓ The cleaning shaft and the turbulators are cleaned and lubricated.
CHECKING AND CLEANING THE IGNITION FAN
1. Set the control to the operating mode OFF.
✓ The OFF symbol lights up.
2. Allow the fire in the heating system to burn out and cool down.
3. Turn the main switch off.
4. Disassemble the rear lower cover (1) using a screwdriver.
Ensure that the cable of the cleaning system does not get pinched
when closing the cleaning shaft lid.
Tighten the two hexagon socket screws of the cleaning shaft lid.
Then turn the screws a quarter-turn back in the opposite direction.
Important!
✎ See “Generally applicable safety instructions” in this section.
Caution!
Danger of burns from hot surfaces
The hot air nozzle of the ignition fan becomes very hot during ope-
ration. Even when turned off, it only cools down slowly.
Switch the heating system off and only start with the cleaning and
maintenance work once the hot air nozzle has cooled down.
Figure 7/14 - Disassembling the ignition fan
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