A.O. Smith T-KJr2-OS User Manual

110 Indoor / 110 Outdoor Service Manual
Ver. 1.01
32
CONFIDENTIAL
10-16. Igniter
Unit Part # #711 AOS Part # 319143-052
Checkpoint B
Function
-To ignite the gas/air mixtures when the water heater is ready to burn gas on
its burner surface.
-The output voltage of the igniter is more than 14 kVDC.
Failure events
1. Unable to ignite during the ignition process.
2. Makes attempts to ignite at all times.
Effects on the water
heater if the igniter fails
1. The water heater cannot ignite during the ignition process and the "11" or
"12" error codes will display.
2. No effects on the water heater, however, the durability of the igniter
wears down.
Error codes when Igniter
fails
11 12
Diagnostic
1. Visual inspection: connection/breakage of wires and/or an observed weak
spark.
2. Check voltages: proper range of values shown below.
Color/Number of wires Purple(7)-Purple(7) 90 to 110 VAC
High-voltage igniter cable
90 to 110VAC
Igniter
14 kVDC
Purple wire
1-3/4" (44mm)
3/4" (20mm)
1-1/2" (38mm)
Power supply
AC 90 to 110V
To High valtage
ignite cable
The high-voltage
igniter cable and
the purple wires
do not come
with 319143-052.

A.O. Smith T-KJr2-OS Specifications

General

Brand	A.O. Smith
Model	T-KJr2-OS
Category	Water Heater
Language	English