Figure 10.3.1 Unscrewing Upper Panel; Figure 10.3.2 Fan Power Connection; Figure 10.3.3 Venturi Removal; Figure 10.3.4 Fan Removal - Hamworthy MILBORNE381 Series Design Installation, Commissioning And Operating Instructions

WARNING: Isolate the electrical supply using the
switch on the base of the control panel (see figure
7.4.3) and turn off the gas supply to the boiler module
being serviced.
10.3 Cleaning the burner
In order to clean the burner, simply dust it with a bristle
brush, wash it with water and blow compressed air
through it from the inside outwards.
To carry-out this operation, remove it from the heat
exchanger in the following manner:
Unscrew the upper panel and remove it as shown in
figure 10.3.1
Upper panel
fixing screws
Figure 10.3.1
Disconnect the power supply connector of the fan as
shown in figure 10.3.2
Fan power
supply
connector
Figure 10.3.2
Removal of venturi
securing screws
Figure 10.3.3
HAMWORTHY HEATING LTD
Unfasten the three screws on the Venturi pipe to
disconnect it from the fan as shown in figure 10.3.3
Figure 10.3.4
Unscrew the 4 nuts locking the flange onto the
burner head and remove the fan as shown in figure
10.3.4
Burner gasket
Figure 10.3.5
Remove the gasket and slide the burner upwards
and out of the exchanger as shown in figure 10.3.5
and figure 10.3.6
Figure 10.3.6
Caution! After cleaning the burner, new gaskets
must be used for the burner and air-gas manifold
flange.
49
MILBORNE
Burner
500001130/J