Baxi Solo 2 PF Installation And Servicing Instruction page 36

9.0 Annual Servicing – Page 36
9.2 Cleaning the Combustion Box
1. Remove the burner assembly by pulling It forward (Fig.
94).
2. Lightly brush any dirt from the top of the burner blades
and ensure that the ports are free from obstruction.
3. Lift the baffles out of the heat exchanger, using the corner
tabs on 30,40,50,60,70 models (Fig. 94).
9.3 Cleaning the Heat Exchanger
1. The heat exchanger may be cleaned by insertion of a thin
metal strip e.g. a hack saw blade or steel rule, from above or
below, taking care not to damage any insulation.
2. Clean the front and rear fin sections and ensure that any
blockages are cleared.
9.4 Cleaning the Burner injector
1. Remove the injector which is screwed into the burner
feed manifold (Fig. 95).
2. Examine and clean carefully, then replace ensuring that
the copper washer is in position. Tighten the injector fully.
9.5 Cleaning the Pilot
1. Disconnect the spark electrode lead at the electrode (Fig.
96).
2. Unscrew the electrode from the manifold and withdraw
the electrode (Fig. 96).
3. Remove the right hand side insulation carrier bracket by
releasing the screw. Remove the side insulation (Fig. 94).
4. Release the screw securing the pilot hood and remove
(Fig. 96a).
5. Carefully remove the pilot injector (Fig. 96a). Examine
and clean it as necessary. Do not use a wire or pin to clean
the injector orifice.
6. Examine the sealing washer (Fig. 96a) and replace if it is
damaged in any way. Reassemble in reverse order.
7. Replace all components in reverse order, (On
30,40,50,60,70 models refit the rear baffle by holding it at an
angle and locating the lower fingers between the heat
exchanger and rear insulation. Lower it into position as
shown) (Fig. 97).
8. Check that the seal to the combustion box door is good.
9. Re-commission the boiler before use, checking for gas
soundness and ensuring all controls are working correctly.
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