SYMPTOMS
FAULT
REMEDY
1. Pilot will not light
automatically.
No spark across electrode gap. (a) Ensure that pizeo-electric
igniter is functioning
correctly.
(b) Check that electrical lead
is not damaged.
2. Pilot will not light
automatically but points (a)
to (e) are satisfactory and
the pilot will light with a
match.
Incorrect position of spark in
relation to pilot gas flow.
Re-position spark plug so that
spark jumps across gas flow.
3. Heater will not remain alight
when pressure is released
from ignition button.
Electro-magnetic valve closes
whilst heater is alight.
(c) Ensure that thermocouple
probe is located in pilot
flame.
(d) Ensure good connection
between thermocouple
and valve.
(e) Check thermocouple.
(f) Check electromagnetic
valve.(by gas engineer).
4. After changing to maximum
position with all three
plaques alight. One or more
plaques appear below
normal intensity.
(a) Blocked jets.
(b) Partially blocked supply
tube.
(a) Remove and clean blocked
jet.
(b) Remove supply tube,
remove jets and blow
through the tube.
5. Difficulty in cross lighting
from position 1 to position
2 or 3.
(a) Air draught directed away
from first plaque.
(b) Position of the pilot flame.
(a) Change the location of the
appliance so that it is not
adversely affected by air
draught.
(b) Position pilot so that flame
impinges across bottom
corner of 2nd plaque as
well as 1st plaque.
6. Smell of combustion.
Missing piece of ceramic
fireclay.
Inspect perimeter of each
plaque and locate place
where some fireclay has
been displaced. Check with
qualified engineer.
FAULT FINDLING CHART
(REPAIR TO BE CONDUCTED BY AUTHORISED PRESONNEL ONLY)
