1.Turnthegascockoff.
2.Undothescrewholdingtheelectricalconnectorinplaceanddetach.Removetheearthleadandsensingtube.
3.Removethescrewssecuringthevalvetoitsbracket.
4.Undothenutseithersideofgasvalve.Easetheupperpipeasideandremovethegasvalve.
5.Inspectthewasherseithersideofthevalveandreplaceifnecessary.
6.Reassembleinreverseorder.
14.20Condensatetrap(Fig.73)
1.Removethecasefrontandthebottomcoverasdetailedin13.2and14.16.
2.Unscrewthecondensateremovalpipefromthebottomofthetrap.
3.Slackenthetwoselftappingscrewsholdingthecondensatetrapinplace.
4.Twistthebodyanticlockwiseandlowerthetrapuntiltheelectricalconnectionsarevisiblebetweenthegasvalvebrackets.Detachthepushonconnectionsnotingtheir
positions.
5.Withdrawthecondensatetrapnotingitsorientation.
6.Replaceinthereverseorder.
14.21Overcurrentswitch(Fig.74)
1.Removethecasefrontandthebottomcoverasdetailedin13.2and14.16.
2.Lowerthecontroltraybyremovingthescrewsateitherside.
3.Removethecontrolcoverbyundoingthetwoscrewsatthelefthandcorners.
4.Removethe4pushonconnectionsfromthebackoftheswitchnotingtheirpositions.
5.Observetheorientationoftheswitch.Extracttheswitchfromthepanel.
6.Replaceinthereverseorder.RefertoSections16.4and16.5fortheelectricalconnections.
7.Ensuretheswitchispressedupatthebackie.the'1'isdepressed.
Fig.72&Fig.73