Glow-worm 12hxi - Appliance Fails to Light; 10 Appliance Safety Devices; Boiler Shutdown; Protecting Against Frost

0020127403 - 01/11 - Glow-worm
ANY ASSISTANCE ?
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9.2 Appliance fails to light
TheLCDwilldisplayaashing'F'and
codenumber,
• Torestarttheboiler,pressthereset
button,seechapter"Howtouseyour
appliance►Overview".
Ifanyfaultpersists,andyourappliancestill
does not work, leave it switched off and
contactyourcompetentperson.
Like all condensing boilers
it will produce a plume of
condensation from the ue
terminal in cool weather.
This is due to the high
efciency and hence low ue
gas temperature of the boiler.
It is normal and not a fault
indication.
10 Appliance safety devices
10.1 Boiler Shutdown
Theboilersoftwareisdesignedto
recognisethepotentialforanoverheat
lockoutandwillshutdownbeforethis
happens.
• Torestarttheboiler,pressthereset
button,seechapter"Howtouseyour
appliance►Overview".
CODE DESCRIPTION POSSIBLECAUSES
F1 Boilerhasattemptedto
light5timesandfailedon
alloccassions
Presstheresetbutton.
Ifthefaultpersists,contactyourInstallation/Servicing
companyorGlow-worm
F5 Overheat Boilerhasoverheated-allowtocoolthenpressresetbutton
Iftheboilerfailstoresumenormal
operationandallexternalcontrolsare
callingforheat,thencallyourInstallation/
ServicingcompanyorGlow-wormservice.
10.2 Protecting against frost
Appliance Protecion
Incaseoftheriskoffrost:
• Makesurethattheelectricalandgas
supplytotheapplianceisturnedon.
• Foranabsenceofseveraldays,you
canleavetheappliancetorunnormally.
Theappliancehasabuiltinfrost
protectiondevicethatprotectstheboiler
fromfreezing.Withthegasandelectric
suppliesONandirrespectiveofanyroom
thermostatsetting,thefrostprotection
devicewilloperatethepumpwhenthe
temperatureoftheboilerwaterfalls
below8
O
C.Atimerisusedsothatthe
temperaturecanbecheckedperiodically.
After10minutesthepumpwillbestopped
ifthetemperatureishigherthan10
O
Cor
hasalreadyreached35
O
C.Theburner
willactivateiftheboilertemperature
doesnotreach10
O
Cafter30minutesor
atanytimeifthetemperaturedropsto
5
O
C.Theburnerwillswitchoffwhenthe
temperaturereaches35
O
C.
Theappliancealwayshasfrostprotection
activewhenthepowerandgassupplyare
on.