Technical data

33
Display
EA
F7
FA
Condition
No ionisation (flame sense) current.
Incorrect ionisation (flame sense)
signal.
Ionisation (flame sense) current
remains after normal shut down i.e
burner does not go off.
Action
Check that the gas cock is open and
for sufficient gas pressure. Check
power to the gas valve. Check spark
and flame sense
electrodes and leads.
Check electrode and lead for splits or
cracks.
Check gas valve wiring and
solenoids.
State
4
4
4
NOTE: A comprehensive fault-finding booklet is supplied seperately .