28
No Spark at
Electrode (fire not
igniting pilot
burner)
Check ignition cable for
damage and listen and
watch for tracking out of
spark to see if it is present
but not making it to the
electrode tip on the pilot
burner.
If cable damaged,
replace cable. Reset
error by performing
a normal start cycle
and try to start
again. Replace pilot
if necessary.
Pilot pipe or pilot
injector could be
blocked
Clear pipe and consider
changing pilot
E01
Low current from
thermocouple but
flame: possibly CO
alarm
Flashing Red LED
on TESC Control
Pilot pipe blocked -
no gas reaching
pilot burner
Check pilot pipe, check
flame appearance of pilot
flames
Chimney blocked
causing Co / Co2 to
build up in the
room
Check flue
Pilot thermocouple
defective / old
Change pilot or
thermocouple
Possible
temporary air
disturbance on
pilot flame
Clear error and restart to
check ignition ok
Code
Comment
Appearance
Possible Cause
Action
E02
too high ambient
temperature ( >73 °C)
around control
Negative flue pull or
blocked flue or
similar
Occurs if started ok
then subsequently
loss of thermocouple
current. Check for
flue problems. Fire
cuts out to prevent
over heating
Reset and try again
Blocked flue
Check and clear
Reset and try again
Poor position of
Ceramic parts
Check manual for
correct placement
Reset and try again
E03
no, defective, or bad
connected
thermocouple
Bad connection
Check if connected
are correct and
terminals are sound
Reset and try again
defective
thermocouple
Replace Pilot
Reset and try again
E04
false flame signal
occurs during
stopping fire
Sensing flame on
pilot when no flame
should be there.
Investigate.
Reset and try again
E05
false flame signal
Flame sensing on
pilot before start of
ignition sequence or
after valve has shut
off. Contamination
of electrode to
ground
Check if and clean
around the area of
the pilot for lint and
other contamination
and clean. Check
where the
thermocouple
connect to the TESC
control for the same
contamination. Clean
these areas.
Reset and try again
E06
too low voltage on
power supply to start
the burner
Weak or old or
defective batteries
Replace batteries
Reset and try again
