Corrective Maintenance; Cleaning The Fan - DeDietrich C230 ECO-A 120 Installation, Operating And Service Manual

C230 ECO-A
Fig. 30 Cleaning the fan 230-80 and
230-120

10.2.1 Corrective maintenance

This should include cleaning the fan, venturi, the heat exchanger and
the burner. These parts must be cleaned in succession. A service kit
which contains gaskets and most used parts for maintenance is
available as an accessory.
Work on the boiler
Disconnect the mains supply, close the main gas cock and allow the
boiler to cool down before working on the boiler.

10.2.2 Cleaning the fan

For the 230-80 and 230-120 versions:
1. Remove the electrical connections from the fan.
2. Unscrew the union nut under the gas multiblock (pay attention
to the sealing).
3. Remove the bolts from the outlet side of the fan.
4. Remove the fan, including venturi and gas multiblock.
5. Remove the bolts on the inlet side of the fan.
6. Detach the venturi from the fan.
7. Clean the fan with a plastic brush.
8. Remove loose dust from the fan.
9. Re-attach the venturi to the fan.
10. Detach the air silencing tube from the venturi.
11. Clean the venturi with a plastic brush.
12. Refit all removed components; check the correct positioning of
the gasket ring between fan and venturi.
10 Inspection and maintenance
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