Maximum Ignition Trials Error
Issue Diagnosis Fix
Error – Ignition Failure after 3
tries boiler has failed to ignite
on 3 successive attempts.
Boiler is in lockout for 1 hour,
then repeats 3-try sequence.
Consult service technician if
error recurs.
No spark when igniting.
Ignition probe/flame
sensor disconnected.
Check that ignition lead is secure at the
control module and at the probe.
Manual gas shutoff is
closed or gas line not
fully purged.
Check for gas flow. Open manual gas
shutoff and reset boiler.
Gap between ignition
probe rods is too large
or too small.
Adjust ignition probe rod gap between ⅛
and 3/16th (3.2-4.7 mm).
Spark, but no ignition. Check spark module is sending power to
gas valve – close gas supply, then
disconnect (black) electric housing from
face of gas valve, gently spread plastic tabs
to open, and look for 24vac voltage during
an ignition cycle. Replace module if no
current detected
Boiler ignites, but shuts
off at the end of the
ignition trial. Improperly
grounded pressure
vessel/burner or
unserviceable ignition
lead or spark module.
Ensure the pressure vessel is grounded.
Check the ignition probe/flame sensor is
electrically isolated from the vessel, and its
ceramic insulator is intact. Replace ignition
lead Replace spark module.
To Next Page
Loading...
Need help?
General
