Ideal Boilers HE24 Installation And Servicing Instructions

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Ideal Boilers HE24 Installation And Servicing Instructions Manual pdf 40 page image

40SERVICINGisar + programmer - Installation and Servicing56 BURNER REPLACEMENT1. Refer to Frame 52.2. Remove the boiler front and sealing panels. Refer toFrames 44 & 45.3. Remove the fan assembly. Refer to Frame 54.4. Remove the 6 screws securing the burner (the 3 screws atthe rear are extended to ease access).5. Lift off the burner from the combustion chamber.6. Fit the new burner, replacing any damaged or deterioratingsealing gasket.7. Reassemble in reverse order.8. Check the operation of the boiler. Refer to Frame 52.Note. Take care not to disturb the ionisation probes at thefront and rear of the combustion chamber.55 BURNER INJECTOR REPLACEMENT1. Refer to Frame 52.2. Remove the boiler front and sealing panels. Refer to Frames44 & 45.3. Disconnect the electrical leads from the fan.4. Undo the gas pipe union connection to the injector housing.5. Remove the screw retaining the fan mounting bracket.6. Remove the fan and venturi assembly7. Remove the 2 injector housing screws.8. Withdraw the injector housing.9. Fit the new injector housing complete with injector.10. Reassemble in reverse order, ensuring that the new gas sealsupplied is located correctly in the injector housing.11. Check operation of the boiler. Refer to Frame 52. Mounting bracket7Ecl 24005InjectorFanGas pipe uniontimeP R O G R A M M E Rprogprog selectselect+-nm843457 CONTROL THERMISTOR, RETURN THERMISTOR & OVERHEAT ‘STAT REPLACEMENT1. Refer to Frame 52.2. Remove the boiler front and sealing panels.Refer to Frames 44 & 45.3. Unclip the thermistor / thermostat from the flow / return pipe andwithdraw it from the controls compartment.4. Disconnect the electrical leads from thethermistor / thermostat.5. Reconnect the electrical leads andreassemble in reverse order, ensuring that thespring clip is securely on the pipe.6. Check the operation of the boiler. Refer toFrame 52.nm7402IonisationProbes456SERVICING