3. The fascia is held in place by four retaining plates atthe back of the fascia. These slot into four retainingbrackets on the hotbox. To remove the fascia, hold thesides of the fascia and lift upward and forward. Thefascia should lift clear of the hotbox. Do not lift too highbefore pulling clear as the bottom of the fascia will foulthe control knob (See figure 29).4. Replace in the reverse order.15.2 To remove the burner unit.1. Remove the fascia as in section 15.1.2. Remove the two screws to the side of the burnerunit.3. Support the inlet ‘T’ connector to avoid straining thepipework and disconnect the appliance from the inlet ‘T’connector.4. Detach the burner unit from the hotbox by lifting clear5. Replace in the reverse order.15.3 To remove the pilot unit.1. Remove the burner unit (See section 15.2).2. If lying the burner on its back, ensure that the worksurface is suitably protected. This will avoid damage tothe work surface. Detach the pilot pipe from the pilotunit.3. Detach the thermocouple from the gas valve.4. Detach the electrode lead from the underside of theelectrode tab.6. Remove the two screws securing the pilot unit (Seefigure 30).7. Refit in the reverse order.Note: The pilot unit is an atmosphere sensing device. It must be replaced as awhole assembly. Its individual components are not separately replaceable.15.4 To remove the gas valve.(See figure 31).1. Remove the burner unit (See section 15.2).2. If lying the burner on its back, ensure that the work surface is suitably protected.This will avoid damage to the work surface. Turn the burner unit upside down. Detachthe thermocouple from the tap.3. Detach the pilot pipe from the tap.4. Detach the inlet pipe.5. Detach the injector pipe.Page 32INSTALLER GUIDE© Baxi Heating U.K. Limited 2009.Figure 29. Fascia removalFigure 30. Pilot unit removal