Bosch Appliances 24I RSF manual Dismantle the Appliance, Service of Components, Test the Appliance

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14.3 DISMANTLE THE APPLIANCE

To carry out a full and comprehensive service of the appliance remove the following parts to gain access to the components which need to be checked or serviced.

Fig. 29. Appliance casing and control equipment fixings.

Inner casing

Side casing

fixing

cover

screws (4)

screws (4)

 

Facia panel fixing screws (2)

Bottom facia panel fixing screws (3)

(a)Cabinet Front Panel. Remove by lifting off the supports.

(b)Inner Casing Cover. Check that the electricity supply to the appliance is turned off. Remove the cabinet front panel. Unscrew the four screws securing the cover to the casing and lift off. See Fig. 29.

(c)Facia Panel. Check that the electricity supply to the appliance is turned off. Remove the cabinet front panel. Unscrew the two upper screws as shown in Fig. 29. and hinge down the facia taking care not to damage the pressure gauge capillary tube or electrical connections.

Fig. 30. Appliance components and fixings (upper assembly).

Flue hood

Flue Gas

Fan assembly

 

Test Point

 

fixing screws (4)

 

 

Overheat thermostat

Auto air vent

Combustion chamber

cover fixing clips (2)

Burner fixing screws (2)

(d)Bottom panel. Unclip and remove the appliance bottom panel.

(e)Fan. Remove the inner casing cover. Carefully unplug the electrical connections and pull off the sensing tubes. Unscrew the four fixing screws and remove the fan assembly. See Fig. 30.

(f)Combustion Chamber Front. Remove the inner casing cover. Undo the spring clips fixing the combustion chamber front. See Fig. 30.

(g)Flue Hood Assembly. Remove the fan assembly. Remove the combustion chamber front. Lift and slide the flue hood assembly from the appliance. See Fig. 30. When refitting the hood ensure that the rear return edge passes under the lip at the rear of the combustion chamber.

(h)Burner Assembly. Remove the combustion chamber front. Pull off the two spark electrode leads and disconnect the flame sense lead. Undo the burner fixing screws. Lift up and remove the burner assembly from the appliance. See Fig. 31.

Fig. 31. Burner and electrode assembly.

Injector

Spark electrode

14.4 SERVICE OF COMPONENTS

Clean the Fan. Any dust or fluff should be removed with a soft brush or by blowing. Take care not to distort the pressure sensing device.

Clean the Main Burner. Brush the blade tops and mixing tube with a soft brush and check that all the flame ports are clear. Remove any blockages with a non-metallic brush. Inspect the injector and clean with a soft brush. Replace the injector if it appears damaged. Do not use a wire brush or anything likely to cause damage. Replace the spark and sense electrodes if they appear damaged.

Clean the Gas to Water Heat Exchanger. Clean the heat exchanger using a soft brush. Remove the deposits from the bottom of the combustion chamber. Do not distort any of the blades.

Combustion Chamber Insulation. Examine and replace any pads that are damaged. Remove any dust or deposits using a soft brush.

Reassemble the appliance in the reverse order.

Check that all components are in place and correctly fixed. Leave the cabinet front panel to be fitted after checking the operation of the appliance.

14.5 TEST THE APPLIANCE

On completion of the service and reassembly of the appliance, check for gas soundness and the correct operation of the appliance as described in Section 12 - Commissioning.

Refit the cabinet front panel and reset the controls to the users requirements.

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Contents These Instructions Apply in the UK only 24i RSFInstallation Regulations ContentsGeneral Information Packing General InstallationSafety Considerations Electrical SupplyData Tables Siting The Appliance Appliance casing dimensions and required clearancesTerminal Position Siting The FlueAir Supply Position AIR from AIR DirectOpen Vent System Sealed SystemRoom thermostat connections Hot Water SupplyElectrical Safety CheckMains Supply Functional flow diagram Flue Options Installing The ApplianceGeneral Fitting Appliance pipework connections AIR and Flue Duct Preparation and AssemblyStandard flue assembly Flue Bends Internal Fitting of the Duct AssemblyVertical Adapter Final InstallationSummary Commissioning The ApplianceAppliance and Central Heating System Preparation Appliance Operation ProgrammerCompletion of Commissioning Servicing Inspection And ServicePRE-SERVICE Inspection Instructions To The UserDismantle the Appliance Service of ComponentsTest the Appliance Draining the Appliance Replacement Of PartsComponent Access Component ReplacementSpark electrode assembly Water Flow Switch. Side View Gauze Filter Conversion InstructionsCentral Heating Mode Operational Flow DiagramsDomestic Hot Water Mode Fault Finding GO to Check K GO to Check D Check CGO to Check F Check E GO to Check OFaulty GO to Check L GO to CheckThermistor Check GO to Check M GO to Check G Check EGO to Check N APS OK White & BrownModulating Valve Check Component Parts List 1210 Bosch Group

24I RSF specifications

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