Flame Rod Assembly - Navien NCB-180 Service Manual

4.9.5 Flame Rod Assembly

Part
To ignite gas by repeatedly discharging a high voltage spark to the main burner until gas ignites.
Function
1. Unable to ignite during the ignition process.
Failure Event
2. Produces multiple unsuccessful attempts to ignite.
1. The unit cannot ignite during the ignition process and "E003" or "E004" error codes will display.
Effects
2. Durability of the igniter wears down
E003, E004, E012
Error Code
Visual inspection: Connection and/or breakage of wires.
Diagnostic
Color/Number of
BLACK: 0~10 uA
wires
Ignite
Flame Rod
Ignite gap distance : 3.5~4.5mm (1/8")
64 NCB Service Manual
Check Point
Bracket
Version 1.0