2.Removethescrewssecuringthethermostattothemountingplateontheflowpipe.
3.Fitnewthermostatandreassembleinreverseorder.
14.13AmbientSensor
1.Pulltheconnectorsoffthesensor.
2.Removethescrew.
3.Fitthenewsensorandreassembleinthereverseorderensurethegasvalveelectricalconnectionsissecurelyhome.
14.14WaterFlowSensor(Fig.65)
1.Draintheprimarycircuit(seeSection14.15paragraph2).
2.Carefullyremovethe3wireconnectornotingorientationthereisasmalllatch.
Toremovejustthesensorelementonly(recommended):
a)Removethelockingringbytwistinganticlockwise.
b)Withdrawthesensorelement.
c)Reassembleinthereverseorderthereisakeywaytoensurethesensorislinedupwiththebodycorrectly.
d)Reconnectthe3wireconnector(Fig.65a).
Toremovejustthesensorbody:
a)Disconnectthefourwiresonthetemperaturesensors(Fig.63).
b)Removethethreepipeclips.Oneneartheheatexchangerandtwoonthebodyflowsensor(Figs.63&65).
c)Carefullywithdrawtheassemblyfromtheheatexchangerandtherearcentralheatingflowpipe.
d)Removethesensorbodyfromtheflowpipe.
e)ReassembleinthereverseorderbeingcarefulnottodamagetheOrings.
Ensurethesensorbodyisfittedinthecorrectorientationwiththearrowpointingtothebackoftheappliance(Fig.65).
f)Ensurethe3wireconnectorisfittedthecorrectwayround(Fig.65a).