Flame Rod Assembly - Navien NCB-24LSWE Service Manual

4.9.5 Flame Rod Assembly

Item
Repeatedly discharges a high voltage spark at the main burner until the gas ignites.
Function
1. Unable to ignite the gas.
Fault
2. Results in multiple unsuccessful ignition attempts.
1. The boiler does not ignite and error code "E003" or "E004" is displayed.
Symptoms
2. The durability of the igniter reduces.
E003, E004, E012
Error codes
Visual inspection: Check wire connections are secure and inspect for wire damage.
Diagnostics
Testing/inspection
BLACK: 0-10 μA
information
Ignitor
64 NCB Service Manual
Mounting
bracket
Flame rod
Ignition gap: 3.5 -4.5 mm (1/8")
Description
Version 1.0