TROUBLESHOOTING
Sympton
Pilot will not light
automatically
Pilot will not light
automatically but points(a)
to (e) are satisfactory and
the pilot will light with a
match
Heater will not remain
alight when pressure is
released from ignition
button
.The flame of maximum
is smaller than normal
situation
Smell of combustion
Fault
No spark across electrode
gap
Incorrect position of spark
in relation to pilot gas
flow.
Electro-magnetic valve
closes while heater is
alight.
(a)Blocked jets.
(b)Partially blocked supply
tube
Missing piece of ceramic
fireclay.
Remedy
(a) Ensure that piezo-
electric switch is
functioning correctly.
(b) Check that electrical
lead is not damaged.
Re-position spark plug so
that spark jumps across
gas flow.
(a) Ensure that
thermocouple probe is
located in pilot flame.
(b) Ensure good
connection between
thermocouple and valve.
(c) Check thermocouple.
(d) Check electromagnetic
valve.
(a)Remove and clean
blocked jet.
(b)Remove supply tube,
remove jets and blow
through the tube.
Inspect perimeter of each
plaque and locate place
where some fireclay has
been displaced.
Repair with PYRUMA and
leave to sot for approx.24
hours.
EN
27