Maximum Ignition Trials Error; Hi Limit Cut-Off Temperature Error; Low Water Cut-Off Error - IBC CX Series Installation And Operating Manual

8.2.1 Maximum ignition trials error

Issue
Error – Ignition No spark when igniting.
Failure after 3 Ignition probe/flame
tries boiler has sensor disconnected.
failed to ignite
Manual gas shutoff is
on 3 successive
closed or gas line not
attempts. Boiler
fully purged.
is in lockout for
Gap between ignition
1 hour, then
probe rods is too large
repeats 3-try
or too small.
sequence.
Consult service
Boiler ignites, but shuts
technician if
off at the end of the
error recurs.
ignition trial. Improperly
grounded pressure
vessel/burner or
unserviceable ignition
lead or spark module.

8.2.2 Hi Limit cut-off temperature error

Issue
Error – Water High-
Limit Exceeded

8.2.3 Low Water Cut-off error

Issue
Error - Low Water
Cutoff
Maximum Ignition Trials Error
Diagnosis
Check that ignition lead is secure at the control
module and at the probe.
Check for gas flow. Open manual gas shutoff
and reset boiler.
Adjust ignition probe rod gap between ⅛ and
3/16th (3.2-4.7 mm).
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.
Hi Limit cutoff temperature Error
Diagnosis
Water temperature exceeds hi-
limit. Boiler is in hard lockout
mode.
Low Water Cutoff Error
Diagnosis
The Safety and Ignition module
has detected a low water
condition.
108
Section: Troubleshooting
Fix
Fix
See Resetting a boiler after a hi-
limit temperature lockout on page
107.
Fix
See Resetting a boiler after a
LWCO lockout on page 106.