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Maintenance
88 Instruction Manual BFC
12
s
12.4.3 Cleaning the orifice
1. Detach the orifice.
2. Remove all contamination present in the orifice.
3. Fit the orifice.
12.4.4 Cleaning heat exchanger
1. Detach the burner.
2. Clean the combustion chamber of the heat exchanger using a vacuum
cleaner and a soft brush.
3. Detach the flue gas discharge.
4. Clean the end of the heat exchanger using tap water.
5. Fit the burner.
6. Fit the flue gas discharge.
n Remark
Check the pressure differential again after cleaning. If the pressure
differential is too low following cleaning, please contact the supplier of the
appliance.
12.5 Finalising mainte-
nance
To finalise the maintenance carry out the following steps:
1. Fill the appliance. See paragraph ’4.2 Filling the appliance’.
2. Re-start the appliance. See ’7.2 Starting up’.
3. Remove the
SERVICE REQUIRED message. Do this by:
pressing R once, followed by E once.