Vaillant ecoMAX pro SERIES Instructions For Use Installation And Servicing

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Vaillant ecoMAX pro SERIES Instructions For Use Installation And Servicing Manual pdf 24 page image

15 ServicingInstructions for Use, Installation and Servicing ecoMAX pro2415 Servicing15.1 GeneralTo ensure the continued safe and efficient operation ofthe boiler it is recommended that it is checked and ser-viced as necessary at regular intervals. The frequencyof servicing will depend upon the particular installationconditions and usage, but in general once per yearshould be adequate. It is law that all servicing is carriedout by a competent person (CORGI registered).All routine servicing requirements can be achieved bythe removal of the front panel, inner panel and chassisfront only.Remove the two screws on the underside of the frontpanel and lift off. Undo the two screws on the front ofinner panel and lift off, see Fig. 15.7.To remove chassis front, refer to section 15.3.Unless stated otherwise any part removed during servi-cing should be replaced in the reverse order to removal.Important:Before starting any maintenance work:- Isolate the mains electricity supply by disconnectingthe plug at the socket outlet (if there is only an isola-ting switch, remove the fuse from the switch).- Turn off the gas supply at the gas service valve fittedto the boiler- When removing any water carrying components ensu-re that the water is kept away from all electrical com-ponents.- Always use new seals and O-rings when replacingparts.- Always test for gas soundness and always carry outfunctional checks after any service work and afterexchanging any gas carrying components.- Always check earth continuity, polarity and resistanceto earth with a multimeter after any service work andafter exchanging any electrical component.Note!The boiler is fitted with a combustion analysistest point. A suitable combustion analyser canbe connected to this point to establish the com-bustion performance of the boiler.It is not necessary to check the CO2 content or adjustthe air ratio of the boiler during the annual service.Checking/adjustment of this value is only required in thefollowing instances; replacement of gas valve or fan,conversion from Natural Gas/ LPG or if incorrect combu-stion is suspected.15.2 Spark ElectrodeDisconnect the ignition lead and earth lead from theignitor unit and two securing screws at the sparkelectrode. Withdraw the spark electrode carefully fromthe combustion chamber, see Fig. 15.1.Inspect the tips for damage.Clean away any debris and check the spark gap is3.5 -4.5 mm.Check the electrode gasket for signs of damage andreplace if necessary.Fig. 15.1SECURINGSCREW2 OFFSPARK GAP HEATEXCHANGERGASKETSPARKELECTRODE3.5 to 4.5mmEARTHLEAD