Ignition Issues - IBC SL Series Installation & Operating Manual

Error - Max. Inlet/Outlet Sensor Temp.
Exceeded. > Check water flow Water
temperature signal not within acceptable range.
Potential flow or sensor failure. Consult service
technician.
Blank – screen dark, but fan running Indicative of
power-surge damage to appliance
Controller is stuck in "service" mode after
software update.

8.3.1 Ignition issues

Issue
Noisy spark when igniting
Boiler rumbles when igniting.
Boiler will not attempt to ignite.
Fan and pump are operating
normally.
Miscellaneous errors
Issue
Ignition issues
Diagnosis
Ignition lead is not firmly
connected.
Contaminants/moisture
on ignitor probe/flame
sensor.
Fluctuating gas
pressure/ gas pressure
too high/too low.
Check for proper gas
piping
No power to ignition
control module.
Diagnosis
Current outlet Check water flow.
temperature
exceeds
operating limit.
Defective or
Check wiring to
disconnected
temperature sensor and
temperature
control module.
sensor.
Check temperature
sensor.
Check transformer;
replace if damaged.
Check circuit board for
visible damage.
If update fails Restarting returns the
or no updates boiler to normal
applied. operation.
Reconnect ignition lead.
Ensure probe is dry by re-running
post-purge; otherwise, clean or
replace ignitor probe.
Check CO
2
Check pressure with manometer
during ignition.
Check system wiring.
Check air reference tubing.
99
8.3.1 Ignition issues
Fix
Fix
level via analyzer.