Supplied By www.heating spares.co Tel. 0161 620 6677
27
221098C
Diagram 8.3
8 F a u l t F i n d i n g
NO
YES
YES
NO
YES
YES
YES
YES
YES
NO
NO
NO
NO
NO
Turn off appliance tap,
turn on appliance tap.
Does the fire light ?
FIRE WILL NOT LIGHT
START HERE
Check that gas is available at burner, using a
match, ensuring correct functioning of burner
on all setting positions. Check that electrode,
micro switch and ignition unit connections are
satisfactory. Check that burner pressure is as
specified - correct any fault found.
Ensure gap is within specified
tolerance, refer to SERVICING.
turn tap to energise ignition.
Does the fire light ?
Disconnect ignition lead from
electrode, place connector
within 4mm of burner and turn
tap to energise igniter. Is there
a spark at the gap ?
Remove ignition lead from ignition unit and
place screw driver between appliance chassis
earth and ignition unit, leaving 4mm gap
between blade and spade connector. Turn tap
to energise ignition. Is there a spark at gap ?
Replace faulty electrode and
reassemble ignition system.
Turn tap to energise igniter.
Does the fire light ?
Disconnect red leads from ignition
unit. Turn tap to energise ignition. Is
there continuity between red leads ?
Renew ignition lead and
reassemble ignition system.
Change the ignition unit battery.
Turn tap to energise ignition.
Does the fire light ?
Rectify faulty leads or
replace micro switch.
Change ignition unit.
Check several times that ignition is satisfactory.
Check that gas is available
Does the pilot light using a match ?
Change pilot filter
NO
YES
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